Fix docker tags

.github/workflows/release.yml

@@ -7,6 +7,7 @@ on:
 
 permissions:
   contents: write
+  packages: write
 
 jobs:
   goreleaser:
@@ -20,6 +21,12 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: 1.21.6
+      - name: Docker Login
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v5
         with:

.goreleaser.yaml

@@ -31,5 +31,22 @@ brews:
       name: pikami
       email: git@pikami.org
 
+dockers:
+  - image_templates:
+    - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}"
+    - "ghcr.io/pikami/{{ .ProjectName }}:latest"
+    dockerfile: Dockerfile
+    use: docker
+    build_flag_templates:
+    - "--platform=linux/amd64"
+    - "--pull"
+    - "--label=org.opencontainers.image.title={{.ProjectName}}"
+    - "--label=org.opencontainers.image.description=Lightweight Cosmos DB emulator"
+    - "--label=org.opencontainers.image.url=https://github.com/pikami/cosmium"
+    - "--label=org.opencontainers.image.source=https://github.com/pikami/cosmium"
+    - "--label=org.opencontainers.image.created={{.Date}}"
+    - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+    - "--label=org.opencontainers.image.version={{.Version}}"
+
 checksum:
   name_template: 'checksums.txt'

Dockerfile

@@ -0,0 +1,6 @@
+FROM scratch
+
+WORKDIR /app
+COPY cosmium /app/cosmium
+
+ENTRYPOINT ["/app/cosmium"]

README.md

@@ -47,6 +47,17 @@ If you want to run Cosmos DB Explorer alongside Cosmium, you'll need to build it
 
 Once running, the explorer can be reached by navigating following URL: `https://127.0.0.1:8081/_explorer/` (might be different depending on your configuration).
 
+### Running with docker (optional)
+
+If you wan to run the application using docker, configure it using environment variables see example:
+```sh
+docker run --rm \
+  -e Persist=/save.json \
+  -v ./save.json:/save.json \
+  -p 8081:8081 \
+  ghcr.io/pikami/cosmium
+```
+
 ### SSL Certificate
 
 By default, Cosmium uses a pre-generated SSL certificate. You can provide your own certificates by specifying paths to the SSL certificate and key (PEM format) using the `-Cert` and `-CertKey` arguments, respectively.
@@ -65,5 +76,14 @@ To disable SSL and run Cosmium on HTTP instead, you can use the `-DisableTls` fl
 
 These arguments allow you to configure various aspects of Cosmium's behavior according to your requirements.
 
+All mentioned arguments can also be set using environment variables:
+* **COSMIUM_ACCOUNTKEY** for `-AccountKey`
+* **COSMIUM_DISABLEAUTH** for `-DisableAuth`
+* **COSMIUM_HOST** for `-Host`
+* **COSMIUM_INITIALDATA** for `-InitialData`
+* **COSMIUM_PERSIST** for `-Persist`
+* **COSMIUM_PORT** for `-Port`
+* **COSMIUM_DEBUG** for `-Debug`
+
 # License
 This project is [MIT licensed](./LICENSE).

api/config/config.go

@@ -3,10 +3,13 @@ package config
 import (
 	"flag"
 	"fmt"
+	"os"
+	"strings"
 )
 
 const (
 	DefaultAccountKey = "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
+	EnvPrefix         = "COSMIUM_"
 )
 
 var Config = ServerConfig{}
@@ -25,6 +28,7 @@ func ParseFlags() {
 	debug := flag.Bool("Debug", false, "Runs application in debug mode, this provides additional logging")
 
 	flag.Parse()
+	setFlagsFromEnvironment()
 
 	Config.Host = *host
 	Config.Port = *port
@@ -42,3 +46,17 @@ func ParseFlags() {
 	Config.DatabaseEndpoint = fmt.Sprintf("https://%s:%d/", Config.Host, Config.Port)
 	Config.AccountKey = *accountKey
 }
+
+func setFlagsFromEnvironment() (err error) {
+	flag.VisitAll(func(f *flag.Flag) {
+		name := EnvPrefix + strings.ToUpper(strings.Replace(f.Name, "-", "_", -1))
+		if value, ok := os.LookupEnv(name); ok {
+			err2 := flag.Set(f.Name, value)
+			if err2 != nil {
+				err = fmt.Errorf("failed setting flag from environment: %w", err2)
+			}
+		}
+	})
+
+	return
+}