docs: update references to github's package registry host

if the base64 string has more than 76 characters, it is wrapped with \n

.github/workflows/pr.yml

@@ -6,6 +6,8 @@ jobs:
     runs-on: ubuntu-latest
     name: Verify commit messages
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - name: Run commitsar
-        uses: docker://aevea/commitsar@sha256:caf5539dd03309a539906c7ad45c2ecc0ae86a1ee2bf5dc538d7986c523526f3
+        uses: docker://aevea/commitsar@sha256:b77adebc0437d4f2bfdf9205a39003e88acbc77a9176fd086b386207a5f3f5cb

.github/workflows/push.yml

@@ -11,7 +11,7 @@ jobs:
       - name: GitHub Package Registry
         uses: aevea/action-kaniko@master
         with:
-          registry: docker.pkg.github.com
+          registry: ghcr.io
           password: ${{ secrets.GITHUB_TOKEN }}
           image: kaniko
           cache: true

.github/workflows/release.yml

@@ -10,17 +10,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Release Notary Action
-        uses: docker://aevea/release-notary@sha256:5eef3c539deb5397457a6acf001ef80df6004ec52bc4b8a0eac0577ad92759d0
+        uses: docker://aevea/release-notary@sha256:8b26ced466da96b23a947d5c9e58baac22ee1192fd08200011e5b178f42118a0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: GitHub Package Registry
         uses: aevea/action-kaniko@master
         with:
-          registry: docker.pkg.github.com
+          registry: ghcr.io
           password: ${{ secrets.GITHUB_TOKEN }}
           image: kaniko
           cache: true

README.md

@@ -83,7 +83,7 @@ with:
   cache_registry: aevea/cache
 ```
 
-### [docker.pkg.github.com](https://github.com/features/packages)
+### [ghcr.io](https://github.com/features/packages)
 
 GitHub's docker registry is a bit special. It doesn't allow top-level images, so this action will prefix any image with the GitHub namespace.
 If you want to push your image like `aevea/action-kaniko/kaniko`, you'll only need to pass `kaniko` to this action.
@@ -93,7 +93,7 @@ passed by default, it will have to be explicitly set up.
 
 ```yaml
 with:
-  registry: docker.pkg.github.com
+  registry: ghcr.io
   password: ${{ secrets.GITHUB_TOKEN }}
   image: kaniko
 ```
@@ -104,7 +104,7 @@ cache layers to that image instead
 
 ```yaml
 with:
-  registry: docker.pkg.github.com
+  registry: ghcr.io
   password: ${{ secrets.GITHUB_TOKEN }}
   image: kaniko
   cache: true
@@ -167,7 +167,7 @@ Example:
 
 ```yaml
 with:
-  registry: docker.pkg.github.com
+  registry: ghcr.io
   password: ${{ secrets.GITHUB_TOKEN }}
   image: kaniko
   strip_tag_prefix: pre-

entrypoint.sh

@@ -10,10 +10,13 @@ export TAG=${TAG#$INPUT_STRIP_TAG_PREFIX}
 export USERNAME=${INPUT_USERNAME:-$GITHUB_ACTOR}
 export PASSWORD=${INPUT_PASSWORD:-$GITHUB_TOKEN}
 export REPOSITORY=$IMAGE
-export IMAGE_LATEST=${INPUT_TAG_WITH_LATEST:+"$IMAGE:latest"}
 export IMAGE=$IMAGE:$TAG
 export CONTEXT_PATH=${INPUT_PATH}
 
+if [[ "$INPUT_TAG_WITH_LATEST" == "true" ]]; then
+    export IMAGE_LATEST="$IMAGE:latest"
+fi
+
 function ensure() {
     if [ -z "${1}" ]; then
         echo >&2 "Unable to find the ${2} variable. Did you set with.${2}?"
@@ -28,7 +31,7 @@ ensure "${IMAGE}" "image"
 ensure "${TAG}" "tag"
 ensure "${CONTEXT_PATH}" "path"
 
-if [ "$REGISTRY" == "docker.pkg.github.com" ]; then
+if [ "$REGISTRY" == "ghcr.io" ]; then
     IMAGE_NAMESPACE="$(echo $GITHUB_REPOSITORY | tr '[:upper:]' '[:lower:]')"
     export IMAGE="$IMAGE_NAMESPACE/$IMAGE"
     export REPOSITORY="$IMAGE_NAMESPACE/$REPOSITORY"
@@ -61,7 +64,7 @@ export DOCKERFILE="--dockerfile $CONTEXT_PATH/${INPUT_BUILD_FILE:-Dockerfile}"
 export TARGET=${INPUT_TARGET:+"--target=$INPUT_TARGET"}
 
 if [ ! -z $INPUT_SKIP_UNCHANGED_DIGEST ]; then
-    export DESTINATION="--digest-file digest --tarPath image.tar --destination $IMAGE"
+    export DESTINATION="--digest-file digest --no-push --tarPath image.tar --destination $IMAGE"
 else
     export DESTINATION="--destination $IMAGE"
     if [ ! -z $IMAGE_LATEST ]; then
@@ -88,8 +91,8 @@ EOF
 if [ ! -z $INPUT_SKIP_UNCHANGED_DIGEST ]; then
     export DIGEST=$(cat digest)
 
-    if [ "$REGISTRY" == "docker.pkg.github.com" ]; then
+    if [ "$REGISTRY" == "ghcr.io" ]; then
-        wget -q -O manifest --header "Authorization: Basic $(echo -n $USERNAME:$PASSWORD | base64)" https://docker.pkg.github.com/v2/$REPOSITORY/manifests/latest || true
+        wget -q -O manifest --header "Authorization: Basic $(echo -n $USERNAME:$PASSWORD | base64 | tr -d \\n)" https://ghcr.io/v2/$REPOSITORY/manifests/latest || true
         export REMOTE="sha256:$(cat manifest | sha256sum | awk '{ print $1 }')"
     else
         export REMOTE=$(reg digest -u $USERNAME -p $PASSWORD $REGISTRY/$REPOSITORY | tail -1)