From 2fff720df38c83673269fa597361c5631e991c9a Mon Sep 17 00:00:00 2001
From: Jonas Zohren <gitlab-jfowl-0ux98@sh14.de>
Date: Sun, 21 Nov 2021 17:34:08 +0000
Subject: [PATCH] CI: New Multiarch builds and Docker images + cargo
 clippy/test output now integrated into GitLab

---
 .dockerignore                           |   2 +
 .gitlab-ci.yml                          | 376 +++++++++++-------------
 Cargo.lock                              |  36 +--
 Cargo.toml                              |   3 +-
 DEPLOY.md                               |  52 ++--
 Dockerfile                              | 137 ++++-----
 docker/README.md                        | 105 +++----
 docker/ci-binaries-packaging.Dockerfile |  48 +--
 docker/healthcheck.sh                   |   6 +-
 9 files changed, 356 insertions(+), 409 deletions(-)

diff --git a/.dockerignore b/.dockerignore
index 80b30721..933b380f 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -14,6 +14,8 @@ docker-compose*
 # Git folder
 .git
 .gitea
+.gitlab
+.github
 
 # Dot files
 .env
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 386986fd..6f2e0fe3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,6 @@ variables:
   FF_USE_FASTZIP: 1
   CACHE_COMPRESSION_LEVEL: fastest
 
-
 # --------------------------------------------------------------------- #
 #  Cargo: Compiling for different architectures                         #
 # --------------------------------------------------------------------- #
@@ -20,7 +19,7 @@ variables:
   rules:
     - if: '$CI_COMMIT_BRANCH == "master"'
     - if: '$CI_COMMIT_BRANCH == "next"'
-    - if: '$CI_COMMIT_TAG'
+    - if: "$CI_COMMIT_TAG"
   interruptible: true
   image: "rust:latest"
   tags: ["docker"]
@@ -28,258 +27,209 @@ variables:
     paths:
       - cargohome
       - target/
-    key: "build_cache-$TARGET-release"
+    key: "build_cache--$TARGET--$CI_COMMIT_BRANCH--release"
   variables:
-    CARGO_PROFILE_RELEASE_LTO=true
-    CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1
+    CARGO_PROFILE_RELEASE_LTO: "true"
+    CARGO_PROFILE_RELEASE_CODEGEN_UNITS: "1"
   before_script:
     - 'echo "Building for target $TARGET"'
     - 'mkdir -p cargohome && CARGOHOME="cargohome"'
-    - "cat /etc/*-release && rustc --version && cargo --version"  # Print version info for debugging
-    - 'apt-get update -yqq'
-    - 'echo "Installing packages: $NEEDED_PACKAGES"'
-    - "apt-get install -yqq --no-install-recommends $NEEDED_PACKAGES"
+    - "rustc --version && cargo --version && rustup show" # Print version info for debugging
     - "rustup target add $TARGET"
   script:
     - time cargo build --target $TARGET --release
-    - 'mv "target/$TARGET/release/conduit" "conduit-$TARGET"'
+    - 'cp "target/$TARGET/release/conduit" "conduit-$TARGET"'
   artifacts:
     expire_in: never
 
-
-build:release:cargo:x86_64-unknown-linux-gnu:
+build:release:cargo:x86_64-unknown-linux-musl-with-debug:
   extends: .build-cargo-shared-settings
+  image: messense/rust-musl-cross:x86_64-musl
   variables:
-    TARGET: "x86_64-unknown-linux-gnu"
+    CARGO_PROFILE_RELEASE_DEBUG: 2 # Enable debug info for flamegraph profiling
+    TARGET: "x86_64-unknown-linux-musl"
+  after_script:
+    - "mv ./conduit-x86_64-unknown-linux-musl ./conduit-x86_64-unknown-linux-musl-with-debug"
   artifacts:
-    name: "conduit-x86_64-unknown-linux-gnu"
+    name: "conduit-x86_64-unknown-linux-musl-with-debug"
     paths:
-      - "conduit-x86_64-unknown-linux-gnu"
-    expose_as: "Conduit for x86_64-unknown-linux-gnu"
-
-build:release:cargo:armv7-unknown-linux-gnueabihf:
-  extends: .build-cargo-shared-settings
-  variables:
-    TARGET: "armv7-unknown-linux-gnueabihf"
-    NEEDED_PACKAGES: "build-essential gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf libc6-dev-armhf-cross"
-    CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER: arm-linux-gnueabihf-gcc
-    CC_armv7_unknown_linux_gnueabihf: arm-linux-gnueabihf-gcc
-    CXX_armv7_unknown_linux_gnueabihf: arm-linux-gnueabihf-g++
-  artifacts:
-    name: "conduit-armv7-unknown-linux-gnueabihf"
-    paths:
-      - "conduit-armv7-unknown-linux-gnueabihf"
-    expose_as: "Conduit for armv7-unknown-linux-gnueabihf"
-
-build:release:cargo:aarch64-unknown-linux-gnu:
-  extends: .build-cargo-shared-settings
-  variables:
-    TARGET: "aarch64-unknown-linux-gnu"
-    NEEDED_PACKAGES: "build-essential gcc-10-aarch64-linux-gnu g++-aarch64-linux-gnu libc6-dev-arm64-cross"
-    CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER: aarch64-linux-gnu-gcc
-    CC_aarch64_unknown_linux_gnu: aarch64-linux-gnu-gcc
-    CXX_aarch64_unknown_linux_gnu: aarch64-linux-gnu-g++
-    TARGET_CC: "/usr/bin/aarch64-linux-gnu-gcc-10"
-    TARGET_AR: "/usr/bin/aarch64-linux-gnu-gcc-ar-10"
-  artifacts:
-    name: "conduit-aarch64-unknown-linux-gnu"
-    paths:
-      - "conduit-aarch64-unknown-linux-gnu"
-    expose_as: "Conduit for aarch64-unknown-linux-gnu"
+      - "conduit-x86_64-unknown-linux-musl-with-debug"
+    expose_as: "Conduit for x86_64-unknown-linux-musl-with-debug"
 
 build:release:cargo:x86_64-unknown-linux-musl:
   extends: .build-cargo-shared-settings
-  image: "rust:alpine"
+  image: messense/rust-musl-cross:x86_64-musl
   variables:
     TARGET: "x86_64-unknown-linux-musl"
-  before_script:
-    - 'echo "Building for target $TARGET"'
-    - 'mkdir -p cargohome && CARGOHOME="cargohome"'
-    - "cat /etc/*-release && rustc --version && cargo --version"  # Print version info for debugging
-    - "rustup target add $TARGET"
-    - "apk add libc-dev"
   artifacts:
     name: "conduit-x86_64-unknown-linux-musl"
     paths:
       - "conduit-x86_64-unknown-linux-musl"
     expose_as: "Conduit for x86_64-unknown-linux-musl"
 
+build:release:cargo:arm-unknown-linux-musleabihf:
+  extends: .build-cargo-shared-settings
+  image: messense/rust-musl-cross:arm-musleabihf
+  variables:
+    TARGET: "arm-unknown-linux-musleabihf"
+  artifacts:
+    name: "conduit-arm-unknown-linux-musleabihf"
+    paths:
+      - "conduit-arm-unknown-linux-musleabihf"
+    expose_as: "Conduit for arm-unknown-linux-musleabihf"
 
+build:release:cargo:armv7-unknown-linux-musleabihf:
+  extends: .build-cargo-shared-settings
+  image: messense/rust-musl-cross:armv7-musleabihf
+  variables:
+    TARGET: "armv7-unknown-linux-musleabihf"
+  artifacts:
+    name: "conduit-armv7-unknown-linux-musleabihf"
+    paths:
+      - "conduit-armv7-unknown-linux-musleabihf"
+    expose_as: "Conduit for armv7-unknown-linux-musleabihf"
+
+build:release:cargo:aarch64-unknown-linux-musl:
+  extends: .build-cargo-shared-settings
+  image: messense/rust-musl-cross:aarch64-musl
+  variables:
+    TARGET: "aarch64-unknown-linux-musl"
+  artifacts:
+    name: "conduit-aarch64-unknown-linux-musl"
+    paths:
+      - "conduit-aarch64-unknown-linux-musl"
+    expose_as: "Conduit for aarch64-unknown-linux-musl"
 
 .cargo-debug-shared-settings:
   extends: ".build-cargo-shared-settings"
   rules:
-    - if: '$CI_COMMIT_BRANCH'
-    - if: '$CI_COMMIT_TAG'
+    - if: '$CI_COMMIT_BRANCH != "master"'
   cache:
-    key: "build_cache-$TARGET-debug"
+    key: "build_cache--$TARGET--$CI_COMMIT_BRANCH--debug"
   script:
     - "time cargo build --target $TARGET"
     - 'mv "target/$TARGET/debug/conduit" "conduit-debug-$TARGET"'
   artifacts:
     expire_in: 4 weeks
 
-build:debug:cargo:x86_64-unknown-linux-gnu:
-  extends: ".cargo-debug-shared-settings"
-  variables:
-    TARGET: "x86_64-unknown-linux-gnu"
-  artifacts:
-    name: "conduit-debug-x86_64-unknown-linux-gnu"
-    paths:
-      - "conduit-debug-x86_64-unknown-linux-gnu"
-    expose_as: "Conduit DEBUG for x86_64-unknown-linux-gnu"
-
 build:debug:cargo:x86_64-unknown-linux-musl:
   extends: ".cargo-debug-shared-settings"
-  image: "rust:alpine"
+  image: messense/rust-musl-cross:x86_64-musl
   variables:
     TARGET: "x86_64-unknown-linux-musl"
-  before_script:
-    - 'echo "Building for target $TARGET"'
-    - 'mkdir -p cargohome && CARGOHOME="cargohome"'
-    - "cat /etc/*-release && rustc --version && cargo --version"  # Print version info for debugging
-    - "rustup target add $TARGET"
-    - "apk add libc-dev"
   artifacts:
     name: "conduit-debug-x86_64-unknown-linux-musl"
     paths:
       - "conduit-debug-x86_64-unknown-linux-musl"
     expose_as: "Conduit DEBUG for x86_64-unknown-linux-musl"
 
-
-
-# --------------------------------------------------------------------- #
-#  Cargo: Compiling deb packages for different architectures            #
-# --------------------------------------------------------------------- #
-
-
-.build-cargo-deb-shared-settings:
-  stage: "build"
-  needs: [ ]
-  rules:
-    - if: '$CI_COMMIT_BRANCH == "master"'
-    - if: '$CI_COMMIT_BRANCH == "next"'
-    - if: '$CI_COMMIT_TAG'
-  interruptible: true
-  image: "rust:latest"
-  tags: ["docker"]
-  cache:
-    paths:
-      - cargohome
-      - target/
-    key: "build_cache-deb-$TARGET"
-  before_script:
-    - 'echo "Building debian package for target $TARGET"'
-    - 'mkdir -p cargohome && CARGOHOME="cargohome"'
-    - "cat /etc/*-release && rustc --version && cargo --version"  # Print version info for debugging
-    - 'apt-get update -yqq'
-    - 'echo "Installing packages: $NEEDED_PACKAGES"'
-    - "apt-get install -yqq --no-install-recommends $NEEDED_PACKAGES"
-    - "rustup target add $TARGET"
-    - "cargo install cargo-deb"
-  script:
-    - time cargo deb --target $TARGET
-    - 'mv target/$TARGET/debian/*.deb "conduit-$TARGET.deb"'
-
-build:cargo-deb:x86_64-unknown-linux-gnu:
-  extends: .build-cargo-deb-shared-settings
-  variables:
-    TARGET: "x86_64-unknown-linux-gnu"
-    NEEDED_PACKAGES: ""
-  artifacts:
-    name: "conduit-x86_64-unknown-linux-gnu.deb"
-    paths:
-      - "conduit-x86_64-unknown-linux-gnu.deb"
-    expose_as: "Debian Package x86_64"
-
-
 # --------------------------------------------------------------------- #
 #  Create and publish docker image                                      #
 # --------------------------------------------------------------------- #
 
-# Build a docker image by packaging up the x86_64-unknown-linux-musl binary into an alpine image
 .docker-shared-settings:
   stage: "build docker image"
-  needs: []
-  interruptible: true
-  image:
-    name: "gcr.io/kaniko-project/executor:debug"
-    entrypoint: [""]
+  image: jdrouet/docker-with-buildx:stable
   tags: ["docker"]
+  services:
+    - docker:dind
+  needs:
+    - "build:release:cargo:x86_64-unknown-linux-musl"
+    - "build:release:cargo:arm-unknown-linux-musleabihf"
+    - "build:release:cargo:armv7-unknown-linux-musleabihf"
+    - "build:release:cargo:aarch64-unknown-linux-musl"
   variables:
-    # Configure Kaniko Caching: https://cloud.google.com/build/docs/kaniko-cache
-    KANIKO_CACHE_ARGS: "--cache=true --cache-copy-layers=true --cache-ttl=120h --cache-repo $CI_REGISTRY_IMAGE/kaniko-ci-cache"
+    DOCKER_HOST: tcp://docker:2375/
+    DOCKER_TLS_CERTDIR: ""
+    DOCKER_DRIVER: overlay2
+    PLATFORMS: "linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/amd64"
+    DOCKER_FILE: "docker/ci-binaries-packaging.Dockerfile"
   before_script:
-    - "mkdir -p /kaniko/.docker"
-    - 'echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"},\"$DOCKER_HUB\":{\"username\":\"$DOCKER_HUB_USER\",\"password\":\"$DOCKER_HUB_PASSWORD\"}}}" > /kaniko/.docker/config.json'
-
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+    # Only log in to Dockerhub if the credentials are given:
+    - if [ -n "${DOCKER_HUB}" ]; then docker login -u "$DOCKER_HUB_USER" -p "$DOCKER_HUB_PASSWORD" "$DOCKER_HUB"; fi
+  script:
+    # Prepare buildx to build multiarch stuff:
+    - docker context create 'ci-context'
+    - docker buildx create --name 'multiarch-builder' --use 'ci-context'
+    # Copy binaries to their docker arch path
+    - mkdir -p linux/ && mv ./conduit-x86_64-unknown-linux-musl linux/amd64
+    - mkdir -p linux/arm/ && mv ./conduit-arm-unknown-linux-musleabihf linux/arm/v6
+    - mkdir -p linux/arm/ && mv ./conduit-armv7-unknown-linux-musleabihf linux/arm/v7
+    - mkdir -p linux/arm64/ && mv ./conduit-aarch64-unknown-linux-musl linux/arm64/v8
+    # Actually create multiarch image:
+    - >
+      docker buildx build
+      --pull
+      --push
+      --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+      --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
+      --build-arg "GIT_REF=$CI_COMMIT_SHORT_SHA"
+      --platform "$PLATFORMS"
+      --tag "$GL_IMAGE_TAG"
+      --tag "$GL_IMAGE_TAG-commit-$CI_COMMIT_SHORT_SHA"
+      --file "$DOCKER_FILE" .
+    # Only try to push to docker hub, if auth data for dockerhub exists:
+    - if [ -n "${DOCKER_HUB}" ]; then docker push "$DH_IMAGE_TAG"; fi
+    - if [ -n "${DOCKER_HUB}" ]; then docker push "$DH_IMAGE_TAG-commit-$CI_COMMIT_SHORT_SHA"; fi
 
 build:docker:next:
   extends: .docker-shared-settings
-  needs:
-    - "build:release:cargo:x86_64-unknown-linux-musl"
-  script:
-    - >
-      /kaniko/executor
-      $KANIKO_CACHE_ARGS
-      --force
-      --context $CI_PROJECT_DIR
-      --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-      --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
-      --build-arg "GIT_REF=$CI_COMMIT_SHORT_SHA"
-      --dockerfile "$CI_PROJECT_DIR/docker/ci-binaries-packaging.Dockerfile"
-      --destination "$CI_REGISTRY_IMAGE/conduit:next"
-      --destination "$CI_REGISTRY_IMAGE/conduit:next-alpine"
-      --destination "$CI_REGISTRY_IMAGE/conduit:commit-$CI_COMMIT_SHORT_SHA"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:next"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:next-alpine"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:commit-$CI_COMMIT_SHORT_SHA"
   rules:
     - if: '$CI_COMMIT_BRANCH == "next"'
-
+  variables:
+    GL_IMAGE_TAG: "$CI_REGISTRY_IMAGE/matrix-conduit:next"
+    DH_IMAGE_TAG: "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:next"
 
 build:docker:master:
   extends: .docker-shared-settings
-  needs:
-    - "build:release:cargo:x86_64-unknown-linux-musl"
-  script:
-    - >
-      /kaniko/executor
-      $KANIKO_CACHE_ARGS
-      --context $CI_PROJECT_DIR
-      --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-      --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
-      --build-arg "GIT_REF=$CI_COMMIT_SHORT_SHA"
-      --dockerfile "$CI_PROJECT_DIR/docker/ci-binaries-packaging.Dockerfile"
-      --destination "$CI_REGISTRY_IMAGE/conduit:latest"
-      --destination "$CI_REGISTRY_IMAGE/conduit:latest-alpine"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:latest"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:latest-alpine"
   rules:
     - if: '$CI_COMMIT_BRANCH == "master"'
+  variables:
+    GL_IMAGE_TAG: "$CI_REGISTRY_IMAGE/matrix-conduit:latest"
+    DH_IMAGE_TAG: "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:latest"
 
-
-build:docker:tags:
-  extends: .docker-shared-settings
-  needs:
-    - "build:release:cargo:x86_64-unknown-linux-musl"
-  script:
-    - >
-      /kaniko/executor
-      $KANIKO_CACHE_ARGS
-      --context $CI_PROJECT_DIR
-      --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-      --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
-      --build-arg "GIT_REF=$CI_COMMIT_SHORT_SHA"
-      --dockerfile "$CI_PROJECT_DIR/docker/ci-binaries-packaging.Dockerfile"
-      --destination "$CI_REGISTRY_IMAGE/conduit:$CI_COMMIT_TAG"
-      --destination "$CI_REGISTRY_IMAGE/conduit:$CI_COMMIT_TAG-alpine"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:$CI_COMMIT_TAG"
-      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:$CI_COMMIT_TAG-alpine"
-  rules:
-    - if: '$CI_COMMIT_TAG'
-
-
+## Build a docker image by packaging up the x86_64-unknown-linux-musl binary into an alpine image
+#.docker-shared-settings:
+#  stage: "build docker image"
+#  needs: []
+#  interruptible: true
+#  image:
+#    name: "gcr.io/kaniko-project/executor:debug"
+#    entrypoint: [""]
+#  tags: ["docker"]
+#  variables:
+#    # Configure Kaniko Caching: https://cloud.google.com/build/docs/kaniko-cache
+#    KANIKO_CACHE_ARGS: "--cache=true --cache-copy-layers=true --cache-ttl=120h --cache-repo $CI_REGISTRY_IMAGE/kaniko-ci-cache"
+#  before_script:
+#    - "mkdir -p /kaniko/.docker"
+#    - 'echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"},\"$DOCKER_HUB\":{\"username\":\"$DOCKER_HUB_USER\",\"password\":\"$DOCKER_HUB_PASSWORD\"}}}" > /kaniko/.docker/config.json'
+#
+#
+#build:docker:next:
+#  extends: .docker-shared-settings
+#  needs:
+#    - "build:release:cargo:x86_64-unknown-linux-musl"
+#  script:
+#    - >
+#      /kaniko/executor
+#      $KANIKO_CACHE_ARGS
+#      --force
+#      --context $CI_PROJECT_DIR
+#      --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+#      --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
+#      --build-arg "GIT_REF=$CI_COMMIT_SHORT_SHA"
+#      --dockerfile "$CI_PROJECT_DIR/docker/ci-binaries-packaging.Dockerfile"
+#      --destination "$CI_REGISTRY_IMAGE/conduit:next"
+#      --destination "$CI_REGISTRY_IMAGE/conduit:next-alpine"
+#      --destination "$CI_REGISTRY_IMAGE/conduit:commit-$CI_COMMIT_SHORT_SHA"
+#      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:next"
+#      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:next-alpine"
+#      --destination "$DOCKER_HUB_IMAGE/matrixconduit/matrix-conduit:commit-$CI_COMMIT_SHORT_SHA"
+#  rules:
+#    - if: '$CI_COMMIT_BRANCH == "next"'
+#
+#
 
 # --------------------------------------------------------------------- #
 #  Run tests                                                            #
@@ -287,9 +237,9 @@ build:docker:tags:
 
 test:cargo:
   stage: "test"
-  needs: [ ]
+  needs: []
   image: "rust:latest"
-  tags: [ "docker" ]
+  tags: ["docker"]
   variables:
     CARGO_HOME: "cargohome"
   cache:
@@ -301,13 +251,20 @@ test:cargo:
   before_script:
     - mkdir -p $CARGO_HOME && echo "using $CARGO_HOME to cache cargo deps"
     - apt-get update -yqq
-    - apt-get install -yqq --no-install-recommends build-essential libssl-dev pkg-config
+    - apt-get install -yqq --no-install-recommends build-essential libssl-dev pkg-config wget
     - rustup component add clippy rustfmt
+    - wget "https://faulty-storage.de/gitlab-report"
+    - chmod +x ./gitlab-report
   script:
-    - rustc --version && cargo --version  # Print version info for debugging
+    - rustc --version && cargo --version # Print version info for debugging
     - cargo fmt --all -- --check
-    - cargo test --workspace --verbose --locked
-    - cargo clippy
+    - "cargo test --color always --workspace --verbose --locked --no-fail-fast -- -Z unstable-options --format json | ./gitlab-report -p test > $CI_PROJECT_DIR/report.xml"
+    - "cargo clippy --color always --verbose --message-format=json | ./gitlab-report -p clippy > $CI_PROJECT_DIR/gl-code-quality-report.json"
+  artifacts:
+    when: always
+    reports:
+      junit: report.xml
+      codequality: gl-code-quality-report.json
 
 test:sytest:
   stage: "test"
@@ -316,8 +273,8 @@ test:sytest:
     - "build:debug:cargo:x86_64-unknown-linux-musl"
   image:
     name: "valkum/sytest-conduit:latest"
-    entrypoint: [ "" ]
-  tags: [ "docker" ]
+    entrypoint: [""]
+  tags: ["docker"]
   variables:
     PLUGINS: "https://github.com/valkum/sytest_conduit/archive/master.tar.gz"
   before_script:
@@ -330,7 +287,7 @@ test:sytest:
   script:
     - "SYTEST_EXIT_CODE=0"
     - "/bootstrap.sh conduit || SYTEST_EXIT_CODE=1"
-    - "perl /sytest/tap-to-junit-xml.pl --puretap --input /logs/results.tap --output $CI_PROJECT_DIR/sytest.xml \"Sytest\" && cp /logs/results.tap $CI_PROJECT_DIR/results.tap"
+    - 'perl /sytest/tap-to-junit-xml.pl --puretap --input /logs/results.tap --output $CI_PROJECT_DIR/sytest.xml "Sytest" && cp /logs/results.tap $CI_PROJECT_DIR/results.tap'
     - "exit $SYTEST_EXIT_CODE"
   artifacts:
     when: always
@@ -340,7 +297,6 @@ test:sytest:
     reports:
       junit: "$CI_PROJECT_DIR/sytest.xml"
 
-
 # --------------------------------------------------------------------- #
 #  Store binaries as package so they have download urls                 #
 # --------------------------------------------------------------------- #
@@ -348,25 +304,31 @@ test:sytest:
 publish:package:
   stage: "upload artifacts"
   needs:
-    - "build:release:cargo:x86_64-unknown-linux-gnu"
-    - "build:release:cargo:armv7-unknown-linux-gnueabihf"
-    - "build:release:cargo:aarch64-unknown-linux-gnu"
     - "build:release:cargo:x86_64-unknown-linux-musl"
-    - "build:cargo-deb:x86_64-unknown-linux-gnu"
+    - "build:release:cargo:arm-unknown-linux-musleabihf"
+    - "build:release:cargo:armv7-unknown-linux-musleabihf"
+    - "build:release:cargo:aarch64-unknown-linux-musl"
+  #    - "build:cargo-deb:x86_64-unknown-linux-gnu"
   rules:
     - if: '$CI_COMMIT_BRANCH == "master"'
     - if: '$CI_COMMIT_BRANCH == "next"'
-    - if: '$CI_COMMIT_TAG'
+    - if: "$CI_COMMIT_TAG"
   image: curlimages/curl:latest
   tags: ["docker"]
   variables:
     GIT_STRATEGY: "none" # Don't need a clean copy of the code, we just operate on artifacts
   script:
     - 'BASE_URL="${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/conduit-${CI_COMMIT_REF_SLUG}/build-${CI_PIPELINE_ID}"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-x86_64-unknown-linux-gnu "${BASE_URL}/conduit-x86_64-unknown-linux-gnu"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-armv7-unknown-linux-gnueabihf "${BASE_URL}/conduit-armv7-unknown-linux-gnueabihf"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-aarch64-unknown-linux-gnu "${BASE_URL}/conduit-aarch64-unknown-linux-gnu"'
     - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-x86_64-unknown-linux-musl "${BASE_URL}/conduit-x86_64-unknown-linux-musl"'
-    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-x86_64-unknown-linux-gnu.deb "${BASE_URL}/conduit-x86_64-unknown-linux-gnu.deb"'
-
+    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-arm-unknown-linux-musleabihf "${BASE_URL}/conduit-arm-unknown-linux-musleabihf"'
+    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-armv7-unknown-linux-musleabihf "${BASE_URL}/conduit-armv7-unknown-linux-musleabihf"'
+    - 'curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --upload-file conduit-aarch64-unknown-linux-musl "${BASE_URL}/conduit-aarch64-unknown-linux-musl"'
 
+# Avoid duplicate pipelines
+# See: https://docs.gitlab.com/ee/ci/yaml/workflow.html#switch-between-branch-pipelines-and-merge-request-pipelines
+workflow:
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+    - if: "$CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS"
+      when: never
+    - if: "$CI_COMMIT_BRANCH"
diff --git a/Cargo.lock b/Cargo.lock
index 293bcff7..166d67fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1968,7 +1968,7 @@ dependencies = [
 [[package]]
 name = "ruma"
 version = "0.4.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "assign",
  "js_int",
@@ -1989,7 +1989,7 @@ dependencies = [
 [[package]]
 name = "ruma-api"
 version = "0.18.5"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "bytes",
  "http",
@@ -2005,7 +2005,7 @@ dependencies = [
 [[package]]
 name = "ruma-api-macros"
 version = "0.18.5"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -2016,7 +2016,7 @@ dependencies = [
 [[package]]
 name = "ruma-appservice-api"
 version = "0.4.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "ruma-api",
  "ruma-common",
@@ -2030,7 +2030,7 @@ dependencies = [
 [[package]]
 name = "ruma-client-api"
 version = "0.12.3"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "assign",
  "bytes",
@@ -2050,7 +2050,7 @@ dependencies = [
 [[package]]
 name = "ruma-common"
 version = "0.6.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "indexmap",
  "js_int",
@@ -2065,7 +2065,7 @@ dependencies = [
 [[package]]
 name = "ruma-events"
 version = "0.24.6"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "indoc",
  "js_int",
@@ -2081,7 +2081,7 @@ dependencies = [
 [[package]]
 name = "ruma-events-macros"
 version = "0.24.6"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -2092,7 +2092,7 @@ dependencies = [
 [[package]]
 name = "ruma-federation-api"
 version = "0.3.1"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "js_int",
  "ruma-api",
@@ -2107,7 +2107,7 @@ dependencies = [
 [[package]]
 name = "ruma-identifiers"
 version = "0.20.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "paste",
  "percent-encoding",
@@ -2122,7 +2122,7 @@ dependencies = [
 [[package]]
 name = "ruma-identifiers-macros"
 version = "0.20.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "quote",
  "ruma-identifiers-validation",
@@ -2132,7 +2132,7 @@ dependencies = [
 [[package]]
 name = "ruma-identifiers-validation"
 version = "0.5.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "thiserror",
 ]
@@ -2140,7 +2140,7 @@ dependencies = [
 [[package]]
 name = "ruma-identity-service-api"
 version = "0.3.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "js_int",
  "ruma-api",
@@ -2153,7 +2153,7 @@ dependencies = [
 [[package]]
 name = "ruma-push-gateway-api"
 version = "0.3.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "js_int",
  "ruma-api",
@@ -2168,7 +2168,7 @@ dependencies = [
 [[package]]
 name = "ruma-serde"
 version = "0.5.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "bytes",
  "form_urlencoded",
@@ -2182,7 +2182,7 @@ dependencies = [
 [[package]]
 name = "ruma-serde-macros"
 version = "0.5.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -2193,7 +2193,7 @@ dependencies = [
 [[package]]
 name = "ruma-signatures"
 version = "0.9.0"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "base64 0.13.0",
  "ed25519-dalek",
@@ -2210,7 +2210,7 @@ dependencies = [
 [[package]]
 name = "ruma-state-res"
 version = "0.4.1"
-source = "git+https://github.com/ruma/ruma?rev=44cfd0adbc83303c19aef590ad0d71647e19f197#44cfd0adbc83303c19aef590ad0d71647e19f197"
+source = "git+https://github.com/ruma/ruma?rev=e7f01ca55a1eff437bad754bf0554cc09f44ec2a#e7f01ca55a1eff437bad754bf0554cc09f44ec2a"
 dependencies = [
  "itertools 0.10.1",
  "js_int",
diff --git a/Cargo.toml b/Cargo.toml
index 13a7af44..d0dd6413 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -120,13 +120,12 @@ maintainer-scripts = "debian/"
 systemd-units = { unit-name = "matrix-conduit" }
 
 [profile.dev]
-lto = 'thin'
+lto = 'off'
 incremental = true
 
 [profile.release]
 lto = 'thin'
 incremental = true
-
 codegen-units=32
 # If you want to make flamegraphs, enable debug info:
 # debug = true
diff --git a/DEPLOY.md b/DEPLOY.md
index 84dd2beb..6470c902 100644
--- a/DEPLOY.md
+++ b/DEPLOY.md
@@ -2,25 +2,30 @@
 
 ## Getting help
 
-If you run into any problems while setting up Conduit, write an email to `timo@koesters.xyz`, ask us in `#conduit:matrix.org` or [open an issue on GitLab](https://gitlab.com/famedly/conduit/-/issues/new).
+If you run into any problems while setting up Conduit, write an email to `timo@koesters.xyz`, ask us
+in `#conduit:matrix.org` or [open an issue on GitLab](https://gitlab.com/famedly/conduit/-/issues/new).
 
 ## Installing Conduit
 
+Although you might be able to compile Conduit for Windows, we do recommend running it on a linux server. We therefore
+only offer Linux binaries.
+
 You may simply download the binary that fits your machine. Run `uname -m` to see what you need. Now copy the right url:
 
-| CPU Architecture     | GNU (Ubuntu, Debian, ArchLinux, ...)  | MUSL (Alpine, ... )     |
-| -------------------- | ------------------------------------- | ----------------------- |
-| x84_64 / amd64       | [Download][x84_64-gnu]                | [Download][x84_64-musl] |
-| armv7 (Raspberry Pi) | [Download][armv7-gnu]                 | -                       |
-| armv8 / aarch64      | [Download][armv8-gnu]                 | -                       |
-
-[x84_64-gnu]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-x86_64-unknown-linux-gnu?job=build:release:cargo:x86_64-unknown-linux-gnu
+| CPU Architecture                            | Download link           |
+| ------------------------------------------- | ----------------------- |
+| x84_64 / amd64 (Most servers and computers) | [Download][x84_64-musl] |
+| armv6                                       | [Download][armv6-musl]  |
+| armv7 (e.g. Raspberry Pi by default)        | [Download][armv7-musl]  |
+| armv8 / aarch64                             | [Download][armv8-musl]  |
 
 [x84_64-musl]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-x86_64-unknown-linux-musl?job=build:release:cargo:x86_64-unknown-linux-musl
 
-[armv7-gnu]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-armv7-unknown-linux-gnueabihf?job=build:release:cargo:armv7-unknown-linux-gnueabihf
+[armv6-musl]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-arm-unknown-linux-musleabihf?job=build:release:cargo:arm-unknown-linux-musleabihf
 
-[armv8-gnu]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-aarch64-unknown-linux-gnu?job=build:release:cargo:aarch64-unknown-linux-gnu
+[armv7-musl]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-armv7-unknown-linux-musleabihf?job=build:release:cargo:armv7-unknown-linux-musleabihf
+
+[armv8-musl]: https://gitlab.com/famedly/conduit/-/jobs/artifacts/master/raw/conduit-aarch64-unknown-linux-musl?job=build:release:cargo:aarch64-unknown-linux-musl
 
 ```bash
 $ sudo wget -O /usr/local/bin/matrix-conduit <url>
@@ -32,15 +37,15 @@ Alternatively, you may compile the binary yourself using
 ```bash
 $ cargo build --release
 ```
+
 Note that this currently requires Rust 1.50.
 
 If you want to cross compile Conduit to another architecture, read the [Cross-Compile Guide](CROSS_COMPILE.md).
 
-
 ## Adding a Conduit user
 
-While Conduit can run as any user it is usually better to use dedicated users for different services.
-This also allows you to make sure that the file permissions are correctly set up.
+While Conduit can run as any user it is usually better to use dedicated users for different services. This also allows
+you to make sure that the file permissions are correctly set up.
 
 In Debian you can use this command to create a Conduit user:
 
@@ -50,9 +55,8 @@ sudo adduser --system conduit --no-create-home
 
 ## Setting up a systemd service
 
-Now we'll set up a systemd service for Conduit, so it's easy to start/stop
-Conduit and set it to autostart when your server reboots. Simply paste the
-default systemd service you can find below into
+Now we'll set up a systemd service for Conduit, so it's easy to start/stop Conduit and set it to autostart when your
+server reboots. Simply paste the default systemd service you can find below into
 `/etc/systemd/system/conduit.service`.
 
 ```systemd
@@ -77,10 +81,10 @@ Finally, run
 $ sudo systemctl daemon-reload
 ```
 
-
 ## Creating the Conduit configuration file
 
-Now we need to create the Conduit's config file in `/etc/matrix-conduit/conduit.toml`. Paste this in **and take a moment to read it. You need to change at least the server name.**
+Now we need to create the Conduit's config file in `/etc/matrix-conduit/conduit.toml`. Paste this in **and take a moment
+to read it. You need to change at least the server name.**
 
 ```toml
 [global]
@@ -128,8 +132,8 @@ address = "127.0.0.1" # This makes sure Conduit can only be reached using the re
 
 ## Setting the correct file permissions
 
-As we are using a Conduit specific user we need to allow it to read the config.
-To do that you can run this command on Debian:
+As we are using a Conduit specific user we need to allow it to read the config. To do that you can run this command on
+Debian:
 
 ```bash
 sudo chown -R conduit:nogroup /etc/matrix-conduit
@@ -142,7 +146,6 @@ sudo mkdir -p /var/lib/matrix-conduit/conduit_db
 sudo chown -R conduit:nogroup /var/lib/matrix-conduit/conduit_db
 ```
 
-
 ## Setting up the Reverse Proxy
 
 This depends on whether you use Apache, Nginx or another web server.
@@ -171,11 +174,9 @@ ProxyPassReverse /_matrix/ http://127.0.0.1:6167/_matrix/
 $ sudo systemctl reload apache2
 ```
 
-
 ### Nginx
 
-If you use Nginx and not Apache, add the following server section inside the
-http section of `/etc/nginx/nginx.conf`
+If you use Nginx and not Apache, add the following server section inside the http section of `/etc/nginx/nginx.conf`
 
 ```nginx
 server {
@@ -198,13 +199,13 @@ server {
     include /etc/letsencrypt/options-ssl-nginx.conf;
 }
 ```
+
 **You need to make some edits again.** When you are done, run
 
 ```bash
 $ sudo systemctl reload nginx
 ```
 
-
 ## SSL Certificate
 
 The easiest way to get an SSL certificate, if you don't have one already, is to install `certbot` and run this:
@@ -213,7 +214,6 @@ The easiest way to get an SSL certificate, if you don't have one already, is to
 $ sudo certbot -d your.server.name
 ```
 
-
 ## You're done!
 
 Now you can start Conduit with:
diff --git a/Dockerfile b/Dockerfile
index f4b176f5..d137353a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,75 +1,66 @@
-# Using multistage build:
-# 	https://docs.docker.com/develop/develop-images/multistage-build/
-# 	https://whitfin.io/speeding-up-rust-docker-builds/
+# syntax=docker/dockerfile:1
+FROM docker.io/rust:1.53-alpine AS builder
+WORKDIR /usr/src/conduit
+
+# Install required packages to build Conduit and it's dependencies
+RUN apk add musl-dev
+
+# == Build dependencies without our own code separately for caching ==
+#
+# Need a fake main.rs since Cargo refuses to build anything otherwise.
+#
+# See https://github.com/rust-lang/cargo/issues/2644 for a Cargo feature
+# request that would allow just dependencies to be compiled, presumably
+# regardless of whether source files are available.
+RUN mkdir src && touch src/lib.rs && echo 'fn main() {}' > src/main.rs
+COPY Cargo.toml Cargo.lock ./
+RUN cargo build --release && rm -r src
+
+# Copy over actual Conduit sources
+COPY src src
+
+# main.rs and lib.rs need their timestamp updated for this to work correctly since
+# otherwise the build with the fake main.rs from above is newer than the
+# source files (COPY preserves timestamps).
+#
+# Builds conduit and places the binary at /usr/src/conduit/target/release/conduit
+RUN touch src/main.rs && touch src/lib.rs && cargo build --release
 
 
-##########################  BUILD IMAGE  ##########################
-# Alpine build image to build Conduit's statically compiled binary
-FROM alpine:3.14 as builder
 
-# Install packages needed for building all crates
-RUN apk add --no-cache \
-        cargo \
-        openssl-dev
 
-# Specifies if the local project is build or if Conduit gets build
-# from the official git repository. Defaults to the git repo.
-ARG LOCAL=false
-# Specifies which revision/commit is build. Defaults to HEAD
-ARG GIT_REF=origin/master
+# ---------------------------------------------------------------------------------------------------------------
+# Stuff below this line actually ends up in the resulting docker image
+# ---------------------------------------------------------------------------------------------------------------
+FROM docker.io/alpine:3.14 AS runner
 
-# Copy project files from current folder
-COPY . .
-# Build it from the copied local files or from the official git repository
-RUN if [[ $LOCAL == "true" ]]; then \
-        mv ./docker/healthcheck.sh . ; \
-        echo "Building from local source..." ; \
-        cargo install --path . ; \
-    else \
-        echo "Building revision '${GIT_REF}' from online source..." ; \
-        cargo install --git "https://gitlab.com/famedly/conduit.git" --rev ${GIT_REF} ; \
-        echo "Loadings healthcheck script from online source..." ; \
-        wget "https://gitlab.com/famedly/conduit/-/raw/${GIT_REF#origin/}/docker/healthcheck.sh" ; \
-    fi
-
-########################## RUNTIME IMAGE ##########################
-# Create new stage with a minimal image for the actual
-# runtime image/container
-FROM alpine:3.14
-
-ARG CREATED
-ARG VERSION
-ARG GIT_REF=origin/master
-
-ENV CONDUIT_CONFIG="/srv/conduit/conduit.toml"
-
-# Labels according to https://github.com/opencontainers/image-spec/blob/master/annotations.md
-# including a custom label specifying the build command
-LABEL org.opencontainers.image.created=${CREATED} \
-      org.opencontainers.image.authors="Conduit Contributors" \
-      org.opencontainers.image.title="Conduit" \
-      org.opencontainers.image.version=${VERSION} \
-      org.opencontainers.image.vendor="Conduit Contributors" \
-      org.opencontainers.image.description="A Matrix homeserver written in Rust" \
-      org.opencontainers.image.url="https://conduit.rs/" \
-      org.opencontainers.image.revision=${GIT_REF} \
-      org.opencontainers.image.source="https://gitlab.com/famedly/conduit.git" \
-      org.opencontainers.image.licenses="Apache-2.0" \
-      org.opencontainers.image.documentation="" \
-      org.opencontainers.image.ref.name="" \
-      org.label-schema.docker.build="docker build . -t matrixconduit/matrix-conduit:latest --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ') --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)" \
-      maintainer="Weasy666"
-
-# Standard port on which Conduit launches. You still need to map the port when using the docker command or docker-compose.
+# Standard port on which Conduit launches.
+# You still need to map the port when using the docker command or docker-compose.
 EXPOSE 6167
 
-# Copy config files from context and the binary from
-# the "builder" stage to the current stage into folder
-# /srv/conduit and create data folder for database
-RUN mkdir -p /srv/conduit/.local/share/conduit
-COPY --from=builder /root/.cargo/bin/conduit /srv/conduit/
-COPY --from=builder ./healthcheck.sh /srv/conduit/
+# Note from @jfowl: I would like to remove this in the future and just have the Docker version be configured with envs. 
+ENV CONDUIT_CONFIG="/srv/conduit/conduit.toml"
 
+# Conduit needs:
+#   ca-certificates: for https
+#   libgcc: Apparently this is needed, even if I (@jfowl) don't know exactly why. But whatever, it's not that big.
+RUN apk add --no-cache \
+        ca-certificates \
+        curl \
+        libgcc
+
+
+# Created directory for the database and media files
+RUN mkdir -p /srv/conduit/.local/share/conduit
+
+# Test if Conduit is still alive, uses the same endpoint as Element
+COPY ./docker/healthcheck.sh /srv/conduit/
+HEALTHCHECK --start-period=5s --interval=5s CMD ./healthcheck.sh
+
+# Copy over the actual Conduit binary from the builder stage
+COPY --from=builder /usr/src/conduit/target/release/conduit /srv/conduit/
+
+# Improve security: Don't run stuff as root, that does not need to run as root:
 # Add www-data user and group with UID 82, as used by alpine
 # https://git.alpinelinux.org/aports/tree/main/nginx/nginx.pre-install
 RUN set -x ; \
@@ -79,19 +70,13 @@ RUN set -x ; \
 
 # Change ownership of Conduit files to www-data user and group
 RUN chown -cR www-data:www-data /srv/conduit
+RUN chmod +x /srv/conduit/healthcheck.sh
 
-# Install packages needed to run Conduit
-RUN apk add --no-cache \
-        ca-certificates \
-        curl \
-        libgcc
-
-# Test if Conduit is still alive, uses the same endpoint as Element
-HEALTHCHECK --start-period=5s --interval=60s CMD ./healthcheck.sh
-
-# Set user to www-data
+# Change user to www-data
 USER www-data
 # Set container home directory
 WORKDIR /srv/conduit
-# Run Conduit
-ENTRYPOINT [ "/srv/conduit/conduit" ]
+
+# Run Conduit and print backtraces on panics
+ENV RUST_BACKTRACE=1
+ENTRYPOINT [ "/srv/conduit/conduit" ]
\ No newline at end of file
diff --git a/docker/README.md b/docker/README.md
index 0e834820..19d9dca6 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -2,53 +2,41 @@
 
 > **Note:** To run and use Conduit you should probably use it with a Domain or Subdomain behind a reverse proxy (like Nginx, Traefik, Apache, ...) with a Lets Encrypt certificate.
 
-
 ## Docker
 
 ### Build & Dockerfile
 
 The Dockerfile provided by Conduit has two stages, each of which creates an image.
+
 1. **Builder:** Builds the binary from local context or by cloning a git revision from the official repository.
-2. **Runtime:** Copies the built binary from **Builder** and sets up the runtime environment, like creating a volume to persist the database and applying the correct permissions.
-
-The Dockerfile includes a few build arguments that should be supplied when building it.
-
-``` Dockerfile
-ARG LOCAL=false
-ARG CREATED
-ARG VERSION
-ARG GIT_REF=origin/master
-```
-
-- **CREATED:** Date and time as string (date-time as defined by RFC 3339). Will be used to create the Open Container Initiative compliant label `org.opencontainers.image.created`. Supply by it like this `$(date -u +'%Y-%m-%dT%H:%M:%SZ')`
-- **VERSION:** The SemVer version of Conduit, which is in the image. Will be used to create the Open Container Initiative compliant label `org.opencontainers.image.version`. If you have a `Cargo.toml` in your build context, you can get it with `$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)`
-- **LOCAL:** *(Optional)* A boolean value, specifies if the local build context should be used, or if the official repository will be cloned. If not supplied with the build command, it will default to `false`.
-- **GIT_REF:** *(Optional)* A git ref, like `HEAD` or a commit ID. The supplied ref will be used to create the Open Container Initiative compliant label `org.opencontainers.image.revision` and will be the ref that is cloned from the repository when not building from the local context. If not supplied with the build command, it will default to `origin/master`.
+2. **Runner:** Copies the built binary from **Builder** and sets up the runtime environment, like creating a volume to persist the database and applying the correct permissions.
 
 To build the image you can use the following command
 
-``` bash
-docker build . -t matrixconduit/matrix-conduit:latest --build-arg CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ') --build-arg VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml)
+```bash
+docker build --tag matrixconduit/matrix-conduit:latest .
 ```
 
 which also will tag the resulting image as `matrixconduit/matrix-conduit:latest`.
-**Note:** it ommits the two optional `build-arg`s.
-
 
 ### Run
 
 After building the image you can simply run it with
 
-``` bash
+```bash
 docker run -d -p 8448:6167 -v ~/conduit.toml:/srv/conduit/conduit.toml -v db:/srv/conduit/.local/share/conduit matrixconduit/matrix-conduit:latest
 ```
 
 or you can skip the build step and pull the image from one of the following registries:
 
-| Registry        | Image                                                                                                               | Size                                                                                        |
-| --------------- | ------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- |
-| Docker Hub      | [matrixconduit/matrix-conduit:latest](https://hub.docker.com/r/matrixconduit/matrix-conduit)                        | ![Image Size](https://img.shields.io/docker/image-size/matrixconduit/matrix-conduit/latest) |
-| GitLab Registry | [registry.gitlab.com/famedly/conduit/conduit:latest](https://gitlab.com/famedly/conduit/container_registry/2134341) | ![Image Size](https://img.shields.io/docker/image-size/matrixconduit/matrix-conduit/latest) |
+| Registry        | Image                                                           | Size                  |
+| --------------- | --------------------------------------------------------------- | --------------------- |
+| Docker Hub      | [matrixconduit/matrix-conduit:latest][dh]                       | ![Image Size][shield] |
+| GitLab Registry | [registry.gitlab.com/famedly/conduit/matrix-conduit:latest][gl] | ![Image Size][shield] |
+
+[dh]: https://hub.docker.com/r/matrixconduit/matrix-conduit
+[gl]: https://gitlab.com/famedly/conduit/container_registry/
+[shield]: https://img.shields.io/docker/image-size/matrixconduit/matrix-conduit/latest
 
 The `-d` flag lets the container run in detached mode. You now need to supply a `conduit.toml` config file, an example can be found [here](../conduit-example.toml).
 You can pass in different env vars to change config values on the fly. You can even configure Conduit completely by using env vars, but for that you need
@@ -56,29 +44,26 @@ to pass `-e CONDUIT_CONFIG=""` into your container. For an overview of possible
 
 If you just want to test Conduit for a short time, you can use the `--rm` flag, which will clean up everything related to your container after you stop it.
 
-
 ## Docker-compose
 
 If the docker command is not for you or your setup, you can also use one of the provided `docker-compose` files. Depending on your proxy setup, use the [`docker-compose.traefik.yml`](docker-compose.traefik.yml) and [`docker-compose.override.traefik.yml`](docker-compose.override.traefik.yml) for Traefik (don't forget to remove `.traefik` from the filenames) or the normal [`docker-compose.yml`](../docker-compose.yml) for every other reverse proxy. Additional info about deploying
 Conduit can be found [here](../DEPLOY.md).
 
-
 ### Build
 
 To build the Conduit image with docker-compose, you first need to open and modify the `docker-compose.yml` file. There you need to comment the `image:` option and uncomment the `build:` option. Then call docker-compose with:
 
-``` bash
-CREATED=$(date -u +'%Y-%m-%dT%H:%M:%SZ') VERSION=$(grep -m1 -o '[0-9].[0-9].[0-9]' Cargo.toml) docker-compose up
+```bash
+docker-compose up
 ```
 
-This will also start the container right afterwards, so if want it to run in detached mode, you also should use the `-d` flag. For possible `build-args`, please take a look at the above `Build & Dockerfile` section.
-
+This will also start the container right afterwards, so if want it to run in detached mode, you also should use the `-d` flag.
 
 ### Run
 
 If you already have built the image or want to use one from the registries, you can just start the container and everything else in the compose file in detached mode with:
 
-``` bash
+```bash
 docker-compose up -d
 ```
 
@@ -101,32 +86,36 @@ So...step by step:
 3. Create the `conduit.toml` config file, an example can be found [here](../conduit-example.toml), or set `CONDUIT_CONFIG=""` and configure Conduit per env vars.
 4. Uncomment the `element-web` service if you want to host your own Element Web Client and create a `element_config.json`.
 5. Create the files needed by the `well-known` service.
-    - `./nginx/matrix.conf` (relative to the compose file, you can change this, but then also need to change the volume mapping)
-      ```nginx
-      server {
-          server_name <SUBDOMAIN>.<DOMAIN>;
-          listen      80 default_server;
 
-          location /.well-known/matrix/ {
-              root /var/www;
-              default_type application/json;
-              add_header Access-Control-Allow-Origin *;
-          }
-      }
-      ```
-    - `./nginx/www/.well-known/matrix/client` (relative to the compose file, you can change this, but then also need to change the volume mapping)
-      ```json
-      {
-          "m.homeserver": {
-              "base_url": "https://<SUBDOMAIN>.<DOMAIN>"
-          }
-      }
-      ```
-    - `./nginx/www/.well-known/matrix/server` (relative to the compose file, you can change this, but then also need to change the volume mapping)
-      ```json
-      {
-          "m.server": "<SUBDOMAIN>.<DOMAIN>:443"
-      }
-      ```
+   - `./nginx/matrix.conf` (relative to the compose file, you can change this, but then also need to change the volume mapping)
+
+     ```nginx
+     server {
+         server_name <SUBDOMAIN>.<DOMAIN>;
+         listen      80 default_server;
+
+         location /.well-known/matrix/ {
+             root /var/www;
+             default_type application/json;
+             add_header Access-Control-Allow-Origin *;
+         }
+     }
+     ```
+
+   - `./nginx/www/.well-known/matrix/client` (relative to the compose file, you can change this, but then also need to change the volume mapping)
+     ```json
+     {
+       "m.homeserver": {
+         "base_url": "https://<SUBDOMAIN>.<DOMAIN>"
+       }
+     }
+     ```
+   - `./nginx/www/.well-known/matrix/server` (relative to the compose file, you can change this, but then also need to change the volume mapping)
+     ```json
+     {
+       "m.server": "<SUBDOMAIN>.<DOMAIN>:443"
+     }
+     ```
+
 6. Run `docker-compose up -d`
 7. Connect to your homeserver with your preferred client and create a user. You should do this immediatly after starting Conduit, because the first created user is the admin.
diff --git a/docker/ci-binaries-packaging.Dockerfile b/docker/ci-binaries-packaging.Dockerfile
index fb674396..b51df7c1 100644
--- a/docker/ci-binaries-packaging.Dockerfile
+++ b/docker/ci-binaries-packaging.Dockerfile
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 # ---------------------------------------------------------------------------------------------------------
 # This Dockerfile is intended to be built as part of Conduit's CI pipeline.
 # It does not build Conduit in Docker, but just copies the matching build artifact from the build job.
@@ -7,20 +8,26 @@
 # Credit's for the original Dockerfile: Weasy666.
 # ---------------------------------------------------------------------------------------------------------
 
-FROM alpine:3.14
+FROM docker.io/alpine:3.14 AS runner
 
-# Install packages needed to run Conduit
+# Standard port on which Conduit launches.
+# You still need to map the port when using the docker command or docker-compose.
+EXPOSE 6167
+
+# Note from @jfowl: I would like to remove this in the future and just have the Docker version be configured with envs. 
+ENV CONDUIT_CONFIG="/srv/conduit/conduit.toml"
+
+# Conduit needs:
+#   ca-certificates: for https
+#   libgcc: Apparently this is needed, even if I (@jfowl) don't know exactly why. But whatever, it's not that big.
 RUN apk add --no-cache \
         ca-certificates \
-        curl \
         libgcc
 
+
 ARG CREATED
 ARG VERSION
 ARG GIT_REF
-
-ENV CONDUIT_CONFIG="/srv/conduit/conduit.toml"
-
 # Labels according to https://github.com/opencontainers/image-spec/blob/master/annotations.md
 # including a custom label specifying the build command
 LABEL org.opencontainers.image.created=${CREATED} \
@@ -33,19 +40,24 @@ LABEL org.opencontainers.image.created=${CREATED} \
       org.opencontainers.image.revision=${GIT_REF} \
       org.opencontainers.image.source="https://gitlab.com/famedly/conduit.git" \
       org.opencontainers.image.licenses="Apache-2.0" \
-      org.opencontainers.image.documentation="" \
+      org.opencontainers.image.documentation="https://gitlab.com/famedly/conduit" \
       org.opencontainers.image.ref.name=""
 
-# Standard port on which Conduit launches. You still need to map the port when using the docker command or docker-compose.
-EXPOSE 6167
-
-# create data folder for database
+# Created directory for the database and media files
 RUN mkdir -p /srv/conduit/.local/share/conduit
 
-# Copy the Conduit binary into the image at the latest possible moment to maximise caching:
-COPY ./conduit-x86_64-unknown-linux-musl /srv/conduit/conduit
+# Test if Conduit is still alive, uses the same endpoint as Element
 COPY ./docker/healthcheck.sh /srv/conduit/
+HEALTHCHECK --start-period=5s --interval=5s CMD ./healthcheck.sh
 
+
+# Depending on the target platform (e.g. "linux/arm/v7", "linux/arm64/v8", or "linux/amd64")
+# copy the matching binary into this docker image
+ARG TARGETPLATFORM
+COPY ./$TARGETPLATFORM /srv/conduit/conduit
+
+
+# Improve security: Don't run stuff as root, that does not need to run as root:
 # Add www-data user and group with UID 82, as used by alpine
 # https://git.alpinelinux.org/aports/tree/main/nginx/nginx.pre-install
 RUN set -x ; \
@@ -57,13 +69,11 @@ RUN set -x ; \
 RUN chown -cR www-data:www-data /srv/conduit
 RUN chmod +x /srv/conduit/healthcheck.sh
 
-
-# Test if Conduit is still alive, uses the same endpoint as Element
-HEALTHCHECK --start-period=5s --interval=60s CMD ./healthcheck.sh
-
-# Set user to www-data
+# Change user to www-data
 USER www-data
 # Set container home directory
 WORKDIR /srv/conduit
-# Run Conduit
+
+# Run Conduit and print backtraces on panics
+ENV RUST_BACKTRACE=1
 ENTRYPOINT [ "/srv/conduit/conduit" ]
diff --git a/docker/healthcheck.sh b/docker/healthcheck.sh
index 568838ec..7ca04602 100644
--- a/docker/healthcheck.sh
+++ b/docker/healthcheck.sh
@@ -7,7 +7,7 @@ fi
 
 # The actual health check.
 # We try to first get a response on HTTP and when that fails on HTTPS and when that fails, we exit with code 1.
-# TODO: Change this to a single curl call. Do we have a config value that we can check for that?
-curl --fail -s "http://localhost:${CONDUIT_PORT}/_matrix/client/versions" || \
-    curl -k --fail -s "https://localhost:${CONDUIT_PORT}/_matrix/client/versions" || \
+# TODO: Change this to a single wget call. Do we have a config value that we can check for that?
+wget --no-verbose --tries=1 --spider "http://localhost:${CONDUIT_PORT}/_matrix/client/versions" || \
+    wget --no-verbose --tries=1 --spider "https://localhost:${CONDUIT_PORT}/_matrix/client/versions" || \
     exit 1