add release tag from docker build (#135)

.goreleaser.yml

@@ -74,6 +74,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/amd64"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "minio/kes:{{ .Tag }}-ppc64le"
   use_buildx: true
@@ -83,6 +84,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/ppc64le"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "minio/kes:{{ .Tag }}-s390x"
   use_buildx: true
@@ -92,6 +94,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/s390x"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "minio/kes:{{ .Tag }}-arm64"
   use_buildx: true
@@ -102,6 +105,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/arm64"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "quay.io/minio/kes:{{ .Tag }}-amd64"
   use_buildx: true
@@ -111,6 +115,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/amd64"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "quay.io/minio/kes:{{ .Tag }}-ppc64le"
   use_buildx: true
@@ -120,6 +125,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/ppc64le"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "quay.io/minio/kes:{{ .Tag }}-s390x"
   use_buildx: true
@@ -129,6 +135,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/s390x"
+  - "--build-arg=TAG={{ .Tag }}"
 - image_templates:
   - "quay.io/minio/kes:{{ .Tag }}-arm64"
   use_buildx: true
@@ -139,6 +146,7 @@ dockers:
     - CREDITS
   build_flag_templates:
   - "--platform=linux/arm64"
+  - "--build-arg=TAG={{ .Tag }}"
 docker_manifests:
 - name_template: minio/kes:{{ .Tag }}
   image_templates:

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.14-alpine as build
+FROM golang:1.16-alpine as build
 
 LABEL maintainer="MinIO Inc <dev@min.io>"
 

Dockerfile.release

@@ -1,10 +1,12 @@
-FROM registry.access.redhat.com/ubi8/ubi-minimal:8.3
+FROM registry.access.redhat.com/ubi8/ubi-minimal:8.4
+
+ARG TAG
 
 LABEL name="MinIO" \
       vendor="MinIO Inc <dev@min.io>" \
       maintainer="MinIO Inc <dev@min.io>" \
-      version="v0.14.0" \
-      release="v0.14.0" \
+      version="${TAG}" \
+      release="${TAG}" \
       summary="KES is a stateless and distributed key-management system for high-performance applications." \
       description="KES as the bridge between modern applications - running as containers on Kubernetes - and centralized KMS solutions. Therefore, KES has been designed to be simple, scalable and secure by default. It has just a few knobs to tweak instead of a complex configuration and does not require a deep understanding of secure key-management or cryptography."