have latest tag at end.

It gets pushed last and shows up as the first item in docker hub.

README.md

@@ -5,7 +5,6 @@ since buildx is flakey for me.
 
 Currently only the docker registry is supported.
 
-
 ## parameters
 
 - repository: Required. The repository of the image.
@@ -17,6 +16,7 @@ Currently only the docker registry is supported.
 - manual: Optional. Don't use params and instead supply all arguments via the command line, default: `false`
 - username: Optional. The username used to log into the registry.
 - password: Optional. The password used to log into the registry.
+
 ## Example
 
 To view a simple invocation just look at [pipeline.yml](ci/pipeline.yml).

ci/pipeline.yml

@@ -23,7 +23,7 @@ jobs:
       image_resource:
         type: registry-image
         source:
-          repository: alpine
+          repository: alpine/git
       inputs:
       - name: source
         path: .
@@ -35,7 +35,6 @@ jobs:
         - -c
         - |
           #!/usr/bin/env sh
-          apk add --no-cache git
           git rev-parse --short HEAD > docker-tags/tags.txt
   - task: build
     privileged: true
@@ -60,16 +59,4 @@ jobs:
         context: .
         manual: false
       run:
-        path: entrypoint.sh
+        path: build
-        args:
-        - build
-        - --frontend
-        - dockerfile.v0
-        - --local
-        - context=.
-        - --local
-        - dockerfile=.
-        - --opt
-        - platform=aarch64,arm,ppc64le,s390x,x86_64
-        - --output
-        - type=image,name=docker.io/redxef/concourse-buildkit,push=true

entrypoint.sh

@@ -63,7 +63,7 @@ build() {
             if [ -z "$line" ]; then
                 continue
             fi
-            final_tag="$final_tag,$repository:$line"
+            final_tag="$repository:$line,$final_tag"
         done < "$additional_tags"
     fi