66 lines
2.9 KiB
Bash
Executable file
66 lines
2.9 KiB
Bash
Executable file
#!/bin/bash
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# This is an entrypoint for our Docker image that does some minimal bootstrapping before executing.
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set -e
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# If the PULUMI_CI variable is set, we'll do some extra things to make common tasks easier.
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if [ ! -z "$PULUMI_CI" ]; then
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# Detect the CI system and configure variables so that we get good Pulumi workflow and GitHub App support.
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if [ ! -z "$GITHUB_WORKFLOW" ]; then
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export PULUMI_CI_SYSTEM="GitHub"
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export PULUMI_CI_BUILD_ID=
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export PULUMI_CI_BUILD_TYPE=
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export PULUMI_CI_BUILD_URL=
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export PULUMI_CI_PULL_REQUEST_SHA="$GITHUB_SHA"
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# For PR events, we want to take the ref of the target branch, not the current. This ensures, for
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# instance, that a PR for a topic branch merging into `master` will use the `master` branch as the
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# target for a preview. Note that for push events, we of course want to use the actual branch.
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if [ "$PULUMI_CI" = "pr" ]; then
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# Not all PR events warrant running a preview. Many of them pertain to changes in assignments
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# and ownership, but we only want to run the preview if the action is "opened" or "edited".
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PR_ACTION=$(jq -r ".action" < $GITHUB_EVENT_PATH)
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if [ "$PR_ACTION" != "opened" ] && [ "$PR_ACTION" != "edited" ]; then
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echo -e "PR event ($PR_ACTION) contains no changes and does not warrant a Pulumi Preview"
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echo -e "Skipping Pulumi action altogether..."
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exit 0
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fi
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BRANCH=$(jq -r ".pull_request.base.ref" < $GITHUB_EVENT_PATH)
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else
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BRANCH="$GITHUB_REF"
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fi
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BRANCH=$(echo $BRANCH | sed "s/refs\/heads\///g")
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fi
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# Respect the branch mappings file for stack selection. Note that this is *not* required, but if the file
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# is missing, the caller of this script will need to pass `-s <stack-name>` to specify the stack explicitly.
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if [ ! -z "$BRANCH" ] && [ -e .pulumi/ci.json ]; then
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PULUMI_STACK_NAME=$(cat .pulumi/ci.json | jq -r ".\"$BRANCH\"")
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if [ "$PULUMI_STACK_NAME" != "null" ]; then
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pulumi stack select $PULUMI_STACK_NAME
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else
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echo -e "No stack configured for branch '$BRANCH'"
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echo -e ""
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echo -e "To configure this branch, please"
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echo -e "\t1) Run 'pulumi stack init <stack-name>'"
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echo -e "\t2) Associated the stack with the branch by adding"
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echo -e "\t\t{"
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echo -e "\t\t\t\"$BRANCH\": \"<stack-name>\""
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echo -e "\t\t}"
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echo -e "\tto your .pulumi/ci.json file"
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echo -e ""
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echo -e "For now, exiting cleanly without doing anything..."
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exit 0
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fi
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fi
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fi
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# Next, lazily install packages if required.
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if [ -e package.json ] && [ ! -d node_modules ]; then
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npm install
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fi
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# Now just pass along all arguments to the Pulumi CLI.
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pulumi "$@"
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