Merge pull request #221 from hashicorp/claire-tag-update

RELENG-86 fixing to only push the latest tag if its not a prerelease

0.X/Makefile

@@ -1,16 +1,18 @@
-REGISTRY_NAME?=docker.io/hashicorp
-VERSION=1.7.0
-IMAGE_TAG_ENT=$(REGISTRY_NAME)/vault-enterprise:$(VERSION)_ent
-IMAGE_TAG_OSS=$(REGISTRY_NAME)/vault:$(VERSION)
+export REGISTRY_NAME?=docker.io/hashicorp
+export VERSION=1.7.0
 
 .PHONY: build ent-image oss-image
 
 build: ent-image oss-image
 
+ent-image: export PROJECT_NAME=vault-enterprise
+ent-image: export TAG_SUFFIX=_ent
 ent-image: 
-	docker build --build-arg VAULT_VERSION=$(VERSION)+ent --no-cache -t $(IMAGE_TAG_ENT) .
-	docker tag $(IMAGE_TAG_ENT) $(REGISTRY_NAME)/vault-enterprise:latest
+	docker build --label version=$(VERSION) --build-arg VAULT_VERSION=$(VERSION)+ent --no-cache -t $(REGISTRY_NAME)/$(PROJECT_NAME):$(VERSION)$(TAG_SUFFIX) .
+	@../scripts/tag-images.sh
 
+oss-image: export PROJECT_NAME=vault
 oss-image:
-	docker build --build-arg VAULT_VERSION=$(VERSION) --no-cache -t $(IMAGE_TAG_OSS) .
-	docker tag $(IMAGE_TAG_OSS) $(REGISTRY_NAME)/vault:latest
+	docker build --label version=$(VERSION) --build-arg VAULT_VERSION=$(VERSION) --no-cache -t $(REGISTRY_NAME)/$(PROJECT_NAME):$(VERSION) .
+	@../scripts/tag-images.sh
+

scripts/tag-images.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+#    * VERSION - Image version to tag i.e 1.7.0 or 1.7.0-
+#	  * REGISTRY_NAME - Docker Registry Name i.e docker.io/hashicorp
+#	  * PROJECT_NAME - Project name i.e vault or vault-enterprise
+
+# Introspects the docker label of an container to see what version 'latest' is
+function get_latest_docker_version() {
+   # Arguments:
+   #   $1 - Docker Org
+   #   $2 - Docker Image Name
+   #
+   #
+   # Returns:
+   #   0 - success (version in the 'latest' container echoed)
+   #   1 - 'latest' tag does not exist or label could not be found
+
+   docker pull "$1"/"$2":latest
+   local docker_latest=$(docker inspect --format="{{ index .Config.Labels.version }}" "$1"/"$2":latest)
+   if [ -z "$docker_latest" ]; then
+      return 1
+   else
+      echo "$docker_latest"
+      return 0
+   fi
+}
+
+# Calculates the higher of two versions
+function higher_version() {
+   # Arguments:
+   #   $1 - first version to compare
+   #   $2 - second version to compare
+   #
+   # Returns:
+   #   higher version of two arguments
+
+   higher_version=$(echo -e "$1\n$2" | sort -rV | head -n 1)
+   echo "$higher_version"
+}
+
+# If this is not a pre-release, we determine if any of the 'latest' images need to be updated
+function main() {
+
+   : "${VERSION?"Need to set VERSION"}"
+
+   : "${REGISTRY_NAME?"Need to set REGISTRY_NAME"}"
+
+   : "${PROJECT_NAME?"Need to set PROJECT_NAME"}"
+
+   DOCKER_TAG="$VERSION$TAG_SUFFIX"
+
+   if [[ "${VERSION}" =~ [0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+      echo "Tagging a new latest docker image"
+      docker tag "$REGISTRY_NAME"/"$PROJECT_NAME":"$DOCKER_TAG" "$REGISTRY_NAME"/"$PROJECT_NAME":latest || return 1
+   fi
+   # If it is a prerelease, we don't tag latest so we do nothing here
+
+   return 0
+}
+main "$@"
+exit $?

ubi/Makefile

@@ -1,16 +1,20 @@
-REGISTRY_NAME?=docker.io/hashicorp
-VERSION=1.7.0
-IMAGE_TAG_ENT=$(REGISTRY_NAME)/vault-enterprise:$(VERSION)-ubi-ent
-IMAGE_TAG_OSS=$(REGISTRY_NAME)/vault:$(VERSION)-ubi
+export REGISTRY_NAME?=docker.io/hashicorp
+export VERSION=1.7.0
 
 .PHONY: build ent-image oss-image
 
 build: ent-image oss-image
 
+ent-image: export PROJECT_NAME=vault-enterprise
+ent-image: export TAG_SUFFIX=-ubi-ent
 ent-image:
-	docker build --build-arg VAULT_VERSION=$(VERSION)+ent --no-cache -t $(IMAGE_TAG_ENT) .
+	docker build --label version=$(VERSION) --build-arg VAULT_VERSION=$(VERSION)+ent --no-cache -t $(REGISTRY_NAME)/$(PROJECT_NAME):$(VERSION)$(TAG_SUFFIX) .
 	docker tag $(IMAGE_TAG_ENT) $(REGISTRY_NAME)/vault-enterprise:latest
+	@../scripts/tag-images.sh
 
+oss-image: export PROJECT_NAME=vault
+oss-image: export TAG_SUFFIX=-ubi
 oss-image:
-	docker build --build-arg VAULT_VERSION=$(VERSION) --no-cache -t $(IMAGE_TAG_OSS) .
+	docker build --label version=$(VERSION) --build-arg VAULT_VERSION=$(VERSION) --no-cache -t $(REGISTRY_NAME)/$(PROJECT_NAME):$(VERSION)$(TAG_SUFFIX) .
 	docker tag $(IMAGE_TAG_OSS) $(REGISTRY_NAME)/vault:latest
+	@../scripts/tag-images.sh