1

entrypoint.sh

@@ -1,46 +1,58 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -eu;
 
 ##
 ## check input
 ##
 
-BUILDCTL_ADDR=${PLUGIN_ADDR:-${BUILDCTL_ADDR:-}}
-if [[ -z "${BUILDCTL_ADDR:-}" ]]; then
-	echo "Missing buildkit addr."
-	exit 1
-fi
 BUILDCTL_CONTEXT=${PLUGIN_CONTEXT:-$(pwd)}
-BUILDCTL_DOCKERFILE=$(dirname ${PLUGIN_DOCKERFILE:-$BUILDCTL_CONTEXT/Dockerfile})
+BUILDCTL_DOCKERFILE=$(dirname "${PLUGIN_DOCKERFILE:-$BUILDCTL_CONTEXT/Dockerfile}")
 if [[ ! -f $BUILDCTL_DOCKERFILE/Dockerfile ]]; then
 	echo "Dockerfile $BUILDCTL_DOCKERFILE/Dockerfile not found!"
 	exit 1
 fi
+
 BUILDCTL_FRONTEND=${PLUGIN_FRONTEND:-dockerfile.v0}
 if [[ "$BUILDCTL_FRONTEND" != "dockerfile.v0" ]]; then
 	echo "Only frontend 'dockerfile.v0' testet and supported yet."
 	exit 1
 fi
 
+SOURCE_DATE_EPOCH=${PLUGIN_SOURCE_DATE_EPOCH:-0}
+
+if [[ -n "${PLUGIN_AUTH:-}" ]]; then
+	echo "$PLUGIN_AUTH" | jq -r 'to_entries|map({(.key):{"auth":(.value.username+":"+.value.password)|@base64}})|add|{"auths":.}' > "$HOME/.docker/config.json"
+	echo "Stored credentials at $HOME/.docker/config.json"
+	echo
+fi
+
 ##
 ## build command
 ##
 
 COMMAND="buildctl"
-COMMAND="$COMMAND --addr $BUILDCTL_ADDR"
 COMMAND="$COMMAND build"
+if [[ -n "${PLUGIN_ADDR:-}" ]]; then
+	COMMAND="$COMMAND --addr $PLUGIN_ADDR"
+fi
 COMMAND="$COMMAND --frontend $BUILDCTL_FRONTEND"
 COMMAND="$COMMAND --local context='$BUILDCTL_CONTEXT'"
 COMMAND="$COMMAND --local dockerfile='$BUILDCTL_DOCKERFILE'"
 if [[ "${PLUGIN_PLATFORM:-}" == "true" ]]; then
 	COMMAND="$COMMAND --opt platform='$PLUGIN_PLATFORM'"
 fi
-# https://github.com/moby/buildkit/blob/master/README.md#output
-if [[ ! -z "${PLUGIN_NAME:-}" ]]; then
-	COMMAND="$COMMAND --output type=image,name=$PLUGIN_NAME,push=${PLUGIN_PUSH:-true}"
-fi
 
-# custom args, e.g. docker run --rm --volume=$(pwd):$(pwd) --workdir=$(pwd) --env=CI=test kokuwaio/buildkit --opt buildarg=foo=bar
+# https://github.com/moby/buildkit/blob/master/README.md#output
+OUTPUT=""
+if [[ -n "${PLUGIN_NAME:-}" ]]; then
+	OUTPUT="--output type=image,\"name=$PLUGIN_NAME\",push=${PLUGIN_PUSH:-true}"
+	OUTPUT="$OUTPUT,oci-mediatypes=true,oci-artifact=true,compression=estargz,compression-level=9"
+	OUTPUT="$OUTPUT,rewrite-timestamp=true"
+	OUTPUT="$OUTPUT$(echo "$PLUGIN_ANNOTATION" | jq --join-output 'keys[] as $k|",annotation.\($k)=\"\(.[$k])\""')"
+fi
+COMMAND="$COMMAND $OUTPUT"
+
+# custom args, e.g. docker run --rm --volume=$HOME:HOME:ro --workdir=$PWD kokuwaio/buildkit --opt buildarg=foo=bar
 if [[ -n "${1:-}" ]]; then
 	COMMAND="$COMMAND $*"
 fi
@@ -49,5 +61,21 @@ fi
 ## execute command
 ##
 
-echo -e "${COMMAND// --/\\n  --}\n"
+echo
+echo Reproduce with docker:
+echo
+echo "SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH docker buildx build ${PLUGIN_CONTEXT:-.}"
+	echo "  --no-cache"
+if [[ "${PLUGIN_PLATFORM:-}" == "true" ]]; then
+	echo "  --platform='$PLUGIN_PLATFORM'"
+fi
+if [[ -n "${OUTPUT:-}" ]]; then
+	echo "  $OUTPUT"
+fi
+echo
+echo Running now:
+echo
+echo -e "SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH ${COMMAND// --/\\n  --}"
+echo
+
 eval "$COMMAND"