initial import

.gitignore

@@ -5,8 +5,5 @@
 *.so
 *.dylib
 
-# Test binary, build with `go test -c`
-*.test
-
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out

Dockerfile

@@ -0,0 +1,15 @@
+FROM gcr.io/kaniko-project/executor:v0.6.0 AS kaniko
+
+FROM alpine:3.8
+
+# clone the official kaniko container into this one, env vars needs to be re-set
+COPY --from=kaniko / /
+ENV HOME /root
+ENV USER /root
+ENV SSL_CERT_DIR=/kaniko/ssl/certs
+ENV DOCKER_CONFIG /kaniko/.docker/
+ENV DOCKER_CREDENTIAL_GCR_CONFIG /kaniko/.config/gcloud/docker_credential_gcr_config.json
+
+# add the wrapper which acts as a drone plugin
+COPY plugin.sh /usr/bin/
+ENTRYPOINT [ "/usr/bin/plugin.sh" ]

Dockerfile.test

@@ -0,0 +1,5 @@
+FROM alpine:3.8
+
+RUN apk add --update git
+
+ENTRYPOINT [ "/usr/bin/plugin.sh" ]

README.md

@@ -1 +1,9 @@
 # kaniko-plugin
+
+A thin shim-wrapper around the official [Google Kaniko](https://cloud.google.com/blog/products/gcp/introducing-kaniko-build-container-images-in-kubernetes-and-google-container-builder-even-without-root-access) Docker image to make it behave like the [Drone Docker plugin](http://plugins.drone.io/drone-plugins/drone-docker/).
+
+## Test that it can build itself
+
+```bash
+docker run -it --rm -w /src -v $PWD:/src -e DOCKER_USERNAME=${DOCKER_USERNAME} -e DOCKER_PASSWORD=${DOCKER_PASSWORD} -e PLUGIN_REPO=banzaicloud/kaniko-plugin -e PLUGIN_TAG=test -e PLUGIN_DOCKERFILE=Dockerfile.test banzaicloud/kaniko-plugin
+```

plugin.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -euo pipefail
+
+export PATH=$PATH:/kaniko/
+
+DOCKER_AUTH=`echo -n "${DOCKER_USERNAME}:${DOCKER_PASSWORD}" | base64`
+
+cat > /kaniko/.docker/config.json <<DOCKERJSON
+{
+    "auths": {
+        "https://index.docker.io/v1/": {
+            "auth": "${DOCKER_AUTH}"
+        }
+    }
+}
+DOCKERJSON
+
+DOCKERFILE=${PLUGIN_DOCKERFILE:-Dockerfile}
+DESTINATION=${PLUGIN_REPO}:${PLUGIN_TAGS:-latest}
+CONTEXT=${PLUGIN_CONTEXT:-$PWD}
+LOG=${PLUGIN_LOG:-info}
+
+/kaniko/executor -v ${LOG} \
+    --context ${CONTEXT} \
+    --dockerfile ${DOCKERFILE} \
+    --destination ${DESTINATION}