Push to my registry

closes https://codeberg.org/woodpecker-plugins/docker-buildx/issues/34

Reviewed-on: https://codeberg.org/woodpecker-plugins/docker-buildx/pulls/80
Reviewed-by: anbraten <anbraten@noreply.codeberg.org>
Co-authored-by: qwerty287 <ndev@web.de>
Co-committed-by: qwerty287 <ndev@web.de>

.woodpecker.yml

@@ -1,9 +1,13 @@
 variables:
-    - &platforms 'linux/amd64,linux/arm64'
-    - &golang 'golang:1.18'
+    - &golang 'golang:1.20'
     - &build_plugin 'woodpeckerci/plugin-docker-buildx:2'
+    - base_settings: &base_buildx_settings
+        platforms: 'linux/amd64,linux/arm64'
+        dockerfile: Dockerfile.multiarch
+        auto_tag: true
+        repo: git.polynom.me/papatutuwawa/docker-buildx
 
-pipeline:
+steps:
   vendor:
     image: *golang
     commands: go mod vendor
@@ -16,9 +20,8 @@ pipeline:
     image: *build_plugin
     pull: true
     settings:
-      platforms: *platforms
-      repo: woodpeckerci/plugin-docker-buildx
-      dockerfile: Dockerfile.multiarch
+      <<: *base_buildx_settings
+      repo: test
       dry_run: true
     when:
       event: pull_request
@@ -27,19 +30,10 @@ pipeline:
   publish:
     image: *build_plugin
     settings:
-      platforms: *platforms
-      repo: woodpeckerci/plugin-docker-buildx,codeberg.org/woodpecker-plugins/docker-buildx
-      auto_tag: true
-      dockerfile: Dockerfile.multiarch
+      <<: *base_buildx_settings
       logins:
-        # Default DockerHub login
-        - registry: https://index.docker.io/v1/
-          username:
-            from_secret: docker_username
-          password:
-            from_secret: docker_password
         # Additional Codeberg login
-        - registry: https://codeberg.org
+        - registry: https://git.polynom.me
           username:
             from_secret: cb_username
           password:

Dockerfile.multiarch

@@ -1,6 +1,6 @@
-ARG BUILDX_VERSION=0.9.1
+ARG BUILDX_VERSION=0.11.0
 ARG DOCKER_VERSION=20.10-dind
-ARG GOLANG_VERSION=1.18
+ARG GOLANG_VERSION=1.20
 
 FROM --platform=$BUILDPLATFORM golang:${GOLANG_VERSION} as build
 

README.md

@@ -4,9 +4,7 @@
     <img alt="Get it on Codeberg" src="https://codeberg.org/Codeberg/GetItOnCodeberg/media/branch/main/get-it-on-neon-blue.png" height="60">
 </a>
 
-Woodpecker CI plugin to build multiarch Docker images with buildx
-
-Woodpecker CI plugin to build multiarch Docker images with buildx. This plugin is a fork of [thegeeklab/drone-docker-buildx](https://github.com/thegeeklab/drone-docker-buildx/) which itself is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker). You can find the full documentation at You can find the full documentation at [woodpecker-ci.org](https://woodpecker-ci.org/plugins/Docker%20Buildx).
+Woodpecker CI plugin to build multiarch Docker images with buildx. This plugin is a fork of [thegeeklab/drone-docker-buildx](https://github.com/thegeeklab/drone-docker-buildx/) which itself is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker). You can find the full documentation at [woodpecker-ci.org](https://woodpecker-ci.org/plugins/Docker%20Buildx) ([docs.md](./docs.md)).
 
 ## Contributors
 

cmd/docker-buildx/config.go

@@ -121,6 +121,12 @@ func settingsFlags(settings *plugin.Settings) []cli.Flag {
 			FilePath:    ".tags",
 			Destination: &settings.Build.Tags,
 		},
+		&cli.StringFlag{
+			Name:        "tags.file",
+			EnvVars:     []string{"PLUGIN_TAGS_FILE", "PLUGIN_TAG_FILE"},
+			Usage:       "overwrites tags flag with values find in set file",
+			Destination: &settings.Build.TagsFile,
+		},
 		&cli.BoolFlag{
 			Name:        "tags.auto",
 			EnvVars:     []string{"PLUGIN_AUTO_TAG"},
@@ -153,11 +159,11 @@ func settingsFlags(settings *plugin.Settings) []cli.Flag {
 			Value:       true,
 			Destination: &settings.Build.LabelsAuto,
 		},
-		&cli.StringSliceFlag{
+		&cli.StringFlag{
 			Name:        "args",
 			EnvVars:     []string{"PLUGIN_BUILD_ARGS"},
-			Usage:       "sets custom build arguments for the build",
-			Destination: &settings.Build.Args,
+			Usage:       "sets custom build arguments for the build. Must be a JSON string",
+			Destination: &settings.Build.ArgsRaw,
 		},
 		&cli.StringSliceFlag{
 			Name:        "args-from-env",

cmd/docker-buildx/main.go

@@ -20,6 +20,10 @@ func main() {
 		godotenv.Overload("/run/drone/env")
 	}
 
+	if envFile, set := os.LookupEnv("PLUGIN_ENV_FILE"); set {
+		godotenv.Overload(envFile)
+	}
+
 	app := &cli.App{
 		Name:    "docker-buildx",
 		Usage:   "build docker container with DinD and buildx",

docs.md

@@ -9,7 +9,7 @@ containerImageUrl: https://hub.docker.com/r/woodpeckerci/plugin-docker-buildx
 url: https://codeberg.org/woodpecker-plugins/docker-buildx
 ---
 
-Woodpecker CI plugin to build multiarch Docker images with buildx. This plugin is a fork of [thegeeklab/drone-docker-buildx](https://github.com/thegeeklab/drone-docker-buildx/) which itself is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker). You can find the full documentation at You can find the full documentation at [woodpecker-plugins.codeberg.page](https://woodpecker-plugins.codeberg.page/plugins/drone-docker-buildx).
+Woodpecker CI plugin to build multiarch Docker images with buildx. This plugin is a fork of [thegeeklab/drone-docker-buildx](https://github.com/thegeeklab/drone-docker-buildx/) which itself is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker).
 
 ## Features
 
@@ -37,7 +37,7 @@ It will automatically generate buildkit configuration to use custom CA certifica
 | `email`                   | *none*            | sets email address to authenticates with
 | `registry`                | `https://index.docker.io/v1/` | sets docker registry to authenticate with
 | `dockerfile`              | `Dockerfile`      | sets dockerfile to use for the image build
-| `tag`/`tags`              | @".tags"          | sets repository tags to use for the image
+| `tag`/`tags`              | *none*            | sets repository tags to use for the image
 | `platforms`               | *none*            | sets target platform for build
 
 ## auto_tag
@@ -48,7 +48,7 @@ If it's not a tag event, and no default branch, automated tags are skipped.
 
 ## Examples
 
-```yml
+```yaml
   publish-next-agent:
     image: woodpeckerci/plugin-docker-buildx
     secrets: [docker_username, docker_password]
@@ -62,7 +62,7 @@ If it's not a tag event, and no default branch, automated tags are skipped.
       event: push
 ```
 
-```yml
+```yaml
   publish:
     image: woodpeckerci/plugin-docker-buildx
     settings:
@@ -75,7 +75,7 @@ If it's not a tag event, and no default branch, automated tags are skipped.
         from_secret: cb_token
 ```
 
-```yml
+```yaml
   docker-build:
     image: woodpeckerci/plugin-docker-buildx
     settings:
@@ -102,6 +102,7 @@ If it's not a tag event, and no default branch, automated tags are skipped.
 | `debug`                   | `false`           | enables verbose debug mode for the docker daemon
 | `daemon_off`              | `false`           | disables the startup of the docker daemon
 | `buildkit_config`         | *none*            | sets content of the docker [buildkit TOML config](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md)
+| `tags_file`               | *none*            | overwrites `tags` option with values find in specified file
 | `context`                 | `.`               | sets the path of the build context to use
 | `auto_tag`                | `false`           | generates tag names automatically based on git branch and git tag, tags supplied via `tags` are additionally added to the auto_tags without suffix
 | `default_suffix"`/`auto_tag_suffix`| *none*   | generates tag names with the given suffix
@@ -121,12 +122,13 @@ If it's not a tag event, and no default branch, automated tags are skipped.
 | `add_host`                | *none*            | sets additional host:ip mapping
 | `output`                  | *none*            | sets build output in format `type=<type>[,<key>=<value>]`
 | `logins`                  | *none*            | option to log into multiple registries
+| `env_file`                | *none*            | load env vars from specified file
 
 ## Multi registry push example
 
 Only supported with `woodpecker >= 1.0.0` (next-da997fa3).
 
-```yml
+```yaml
 settings:
   repo: a6543/tmp,codeberg.org/6543/tmp
   tag: demo

go.mod

@@ -1,6 +1,6 @@
 module codeberg.org/woodpecker-plugins/plugin-docker-buildx
 
-go 1.18
+go 1.20
 
 require (
 	codeberg.org/6543/go-yaml2json v0.3.0

plugin/impl.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
+
+	"codeberg.org/woodpecker-plugins/plugin-docker-buildx/utils"
 )
 
 // Daemon defines Docker daemon parameters.
@@ -52,9 +54,11 @@ type Build struct {
 	TagsDefaultName string          // Docker build auto tag name override
 	TagsSuffix      string          // Docker build tags with suffix
 	Tags            cli.StringSlice // Docker build tags
+	TagsFile        string          // Docker build tags read from an file
 	LabelsAuto      bool            // Docker build auto labels
 	Labels          cli.StringSlice // Docker build labels
 	Platforms       cli.StringSlice // Docker build target platforms
+	ArgsRaw         string          // Docker build args (as JSON)
 	Args            cli.StringSlice // Docker build args
 	ArgsEnv         cli.StringSlice // Docker build args from env
 	Target          string          // Docker build target
@@ -84,6 +88,26 @@ func (l Login) anonymous() bool {
 	return l.Username == "" || l.Password == ""
 }
 
+// Parse the provided build args into b.Args
+func (b Build) BuildArgs() {
+	if len(b.ArgsRaw) > 0 {
+		buildArgsRaw := map[string]string{}
+		err := json.Unmarshal([]byte(b.ArgsRaw), &buildArgsRaw)
+		if err != nil {
+			fmt.Printf("Failed to parse build args: %s", err)
+		}
+
+		for key, value := range buildArgsRaw {
+			b.Args = *cli.NewStringSlice(
+				append(
+					b.Args.Value(),
+					fmt.Sprintf("%s=%s", key, value),
+				)...,
+			)
+		}
+	}
+}
+
 // Init initialise plugin settings
 func (p *Plugin) InitSettings() error {
 	if p.settings.LoginsRaw != "" {
@@ -123,6 +147,22 @@ func (p *Plugin) Validate() error {
 		}
 	}
 
+	// overload tags flag with tags.file if set
+	if p.settings.Build.TagsFile != "" {
+		tagsFile, err := os.ReadFile(p.settings.Build.TagsFile)
+		if err != nil {
+			return fmt.Errorf("could not read tags file: %w", err)
+		}
+
+		// split file content into slice of tags
+		tagsFileList := strings.Split(strings.TrimSpace(string(tagsFile)), "\n")
+		// trim space of each tag
+		tagsFileList = utils.Map(tagsFileList, func(s string) string { return strings.TrimSpace(s) })
+
+		// finally overwrite
+		p.settings.Build.Tags = *cli.NewStringSlice(tagsFileList...)
+	}
+
 	if p.settings.Build.TagsAuto {
 		// we only generate tags on default branch or an tag event
 		if UseDefaultTag(
@@ -208,6 +248,8 @@ func (p *Plugin) writeBuildkitConfig() error {
 
 // Execute provides the implementation of the plugin.
 func (p *Plugin) Execute() error {
+	p.settings.Build.BuildArgs()
+
 	// start the Docker daemon server
 	if !p.settings.Daemon.Disabled {
 		// If no custom DNS value set start internal DNS server

utils/lamda.go

@@ -0,0 +1,9 @@
+package utils
+
+func Map[T any](in []T, fn func(T) T) []T {
+	out := in
+	for i := range in {
+		out[i] = fn(out[i])
+	}
+	return out
+}

utils/lamda_test.go

@@ -0,0 +1,18 @@
+package utils
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMap(t *testing.T) {
+	ints := []int{1, 2, 3, 4}
+	ints = Map(ints, func(i int) int { return i * 10 })
+	assert.EqualValues(t, []int{10, 20, 30, 40}, ints)
+
+	sl := []string{"a ", "b", " c"}
+	sl = Map(sl, func(s string) string { return "#" + strings.TrimSpace(s) })
+	assert.EqualValues(t, []string{"#a", "#b", "#c"}, sl)
+}