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bitwarden_rs/docker/healthcheck.sh
Jeremy Lin bbb0484d03 Healthcheck fixes/optimizations
* Switch healthcheck interval/timeout from 30s/3s to 60s/10s.
  30s interval is arguably overkill, and 3s timeout is definitely too short
  for lower end machines.
* Use HEALTHCHECK CMD exec form to avoid superfluous `sh` invocations.
* Add `--silent --show-error` flags to curl call to avoid progress meter being
  shown in healthcheck logs.
2020-03-25 20:13:36 -07:00

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#!/bin/sh
# Use the value of the corresponding env var (if present),
# or a default value otherwise.
: ${DATA_FOLDER:="data"}
: ${ROCKET_PORT:="80"}
CONFIG_FILE="${DATA_FOLDER}"/config.json
# Given a config key, return the corresponding config value from the
# config file. If the key doesn't exist, return an empty string.
get_config_val() {
local key="$1"
# Extract a line of the form:
# "domain": "https://bw.example.com/path",
grep "\"${key}\":" "${CONFIG_FILE}" |
# To extract just the value (https://bw.example.com/path), delete:
# (1) everything up to and including the first ':',
# (2) whitespace and '"' from the front,
# (3) ',' and '"' from the back.
sed -e 's/[^:]\+://' -e 's/^[ "]\+//' -e 's/[,"]\+$//'
}
# Extract the base path from a domain URL. For example:
# - `` -> ``
# - `https://bw.example.com` -> ``
# - `https://bw.example.com/` -> ``
# - `https://bw.example.com/path` -> `/path`
# - `https://bw.example.com/multi/path` -> `/multi/path`
get_base_path() {
echo "$1" |
# Delete:
# (1) everything up to and including '://',
# (2) everything up to '/',
# (3) trailing '/' from the back.
sed -e 's|.*://||' -e 's|[^/]\+||' -e 's|/*$||'
}
# Read domain URL from config.json, if present.
if [ -r "${CONFIG_FILE}" ]; then
domain="$(get_config_val 'domain')"
if [ -n "${domain}" ]; then
# config.json 'domain' overrides the DOMAIN env var.
DOMAIN="${domain}"
fi
fi
base_path="$(get_base_path "${DOMAIN}")"
if [ -n "${ROCKET_TLS}" ]; then
s='s'
fi
curl --insecure --fail --silent --show-error \
"http${s}://localhost:${ROCKET_PORT}${base_path}/alive" || exit 1