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dokku/plugins/builder-herokuish/pre-build-buildpack
Jose Diaz-Gonzalez ef490f0a05 feat: retire intermediate containers after use
Rather than waiting for the next deploy, take advantage of the retire system to retire these containers immediately.

Note that since the retire process happens out of band, the containers may stick around for up to 5 minutes, after which point they will be removed.

Customization of the wait time to retire - currently 60 seconds - is up for future debate. The containers ultimately haven't been useful for debugging, so keeping them around for longer won't help in most cases, and folks can disable the dokku-retire service (or cron) if that is desired.
2020-11-22 16:57:39 -05:00

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#!/usr/bin/env bash
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"
trigger-builder-herokuish-pre-build-buildpack() {
declare desc="builder-herokuish pre-build-buildpack plugin trigger"
declare trigger="pre-build-buildpack"
declare APP="$1"
local IMAGE CID
local DOCKER_COMMIT_LABEL_ARGS=("--change" "LABEL org.label-schema.schema-version=1.0" "--change" "LABEL org.label-schema.vendor=dokku" "--change" "LABEL com.dokku.app-name=$APP")
local DOCKER_RUN_LABEL_ARGS="--label=com.dokku.app-name=$APP"
verify_app_name "$APP"
IMAGE=$(get_app_image_name "$APP")
[[ -z $(config_get --global CURL_CONNECT_TIMEOUT) ]] && config_set --global CURL_CONNECT_TIMEOUT=90
[[ -z $(config_get --global CURL_TIMEOUT) ]] && config_set --global CURL_TIMEOUT=600
dokku_log_info1 "Adding BUILD_ENV to build environment..."
# create build env files for use in buildpacks like this:
# https://github.com/niteoweb/heroku-buildpack-buildout/blob/5879fa3418f7d8e079f1aa5816ba1adde73f4948/bin/compile#L34
CID=$(config_bundle --merged "$APP" | "$DOCKER_BIN" container run "${DOCKER_RUN_LABEL_ARGS[@]}" $DOKKU_GLOBAL_RUN_ARGS -i -a stdin "$IMAGE" /bin/bash -c "mkdir -p /tmp/env; cat | tar -x -C /tmp/env")
if test "$("$DOCKER_BIN" container wait "$CID")" -ne 0; then
dokku_log_warn "Failure injecting BUILD_ENV into build environment"
return 1
fi
"$DOCKER_BIN" container commit "${DOCKER_COMMIT_LABEL_ARGS[@]}" "$CID" "$IMAGE" >/dev/null
plugn trigger scheduler-register-retired "$APP" "$CID"
# create build env for 'old style' buildpacks and dokku plugins
CID=$(config_export app "$APP" --format envfile --merged | "$DOCKER_BIN" container run "${DOCKER_RUN_LABEL_ARGS[@]}" $DOKKU_GLOBAL_RUN_ARGS -i -a stdin "$IMAGE" /bin/bash -c "cat >> /app/.env")
if test "$("$DOCKER_BIN" container wait "$CID")" -ne 0; then
dokku_log_warn "Failure injecting old-style BUILD_ENV"
return 1
fi
"$DOCKER_BIN" container commit "${DOCKER_COMMIT_LABEL_ARGS[@]}" "$CID" "$IMAGE" >/dev/null
plugn trigger scheduler-register-retired "$APP" "$CID"
}
trigger-builder-herokuish-pre-build-buildpack "$@"