feat: First version

.github/workflows/chart.yaml

@@ -0,0 +1,36 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - helm-charts/**
+
+jobs:
+  release:
+    # depending on default permission settings for your org (contents being read-only or read-write for workloads), you will have to add permissions
+    # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v4
+          env:
+            GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/container.yaml

@@ -0,0 +1,90 @@
+name: Container
+
+on:
+  push:
+    branches: [ "main" ]
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      # This is used to complete the identity challenge
+      # with sigstore/fulcio when running outside of PRs.
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # Install the cosign tool except on PR
+      # https://github.com/sigstore/cosign-installer
+      - name: Install cosign
+        if: github.event_name != 'pull_request'
+        uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 #v3.5.0
+        with:
+          cosign-release: 'v2.2.4'
+
+      # Set up BuildKit Docker container builder to be able to build
+      # multi-platform images and export cache
+      # https://github.com/docker/setup-buildx-action
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      # Sign the resulting Docker image digest except on PRs.
+      # This will only write to the public Rekor transparency log when the Docker
+      # repository is public to avoid leaking data.  If you would like to publish
+      # transparency data even for private images, pass --force to cosign below.
+      # https://github.com/sigstore/cosign
+      - name: Sign the published Docker image
+        if: ${{ github.event_name != 'pull_request' }}
+        env:
+          # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
+          TAGS: ${{ steps.meta.outputs.tags }}
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
+        # This step uses the identity token to provision an ephemeral certificate
+        # against the sigstore community Fulcio instance.
+        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}

Dockerfile

@@ -0,0 +1,20 @@
+FROM golang:1.22-alpine as builder
+
+COPY . /app
+WORKDIR /app
+RUN GOOS=linux go build cmd/cloudflare-ddns-update.go
+
+FROM golang:1.22-alpine
+
+COPY --from=builder /app/cloudflare-ddns-update /
+
+ENTRYPOINT ["/cloudflare-ddns-update"]
+
+LABEL io.artifacthub.package.readme-url=https://github.com/dploeger/cloudflare-ddns-update
+LABEL org.opencontainers.image.created=2024-06-06
+LABEL org.opencontainers.image.description="Dyn API to update Cloudflare DNS records"
+LABEL org.opencontainers.image.documentation=https://github.com/dploeger/cloudflare-ddns-update
+LABEL org.opencontainers.image.source=https://github.com/dploeger/cloudflare-ddns-update
+LABEL org.opencontainers.image.title="cloudflare-ddns-update"
+LABEL org.opencontainers.image.url=https://github.com/dploeger/cloudflare-ddns-update
+LABEL org.opencontainers.image.vendor="Dennis Plöger"

README.md

@@ -1 +1,33 @@
-# cloudflare-ddns-update
+# cloudflare-ddns-update - Dyn v3 API that manages DNS entries in cloudflare
+
+## Introduction
+
+The [Dyn v3 API](https://help.dyn.com/remote-access-api/perform-update/) to update dynamic DNS records is used in 
+multiple routers on the market. This tool allows to provide this API while managing the dynamic DNS records in cloudflare.
+
+## Configuration
+
+The tool requires the following environment variables to be set:
+
+* CLOUDFLARE_API_TOKEN: The API token used to authenticate against the cloudflare API
+* CLOUDFLARE_ZONE: The name of the DNS zone to manage
+* AUTH_USERNAME: A username that is required to be used for the Dyn API
+* AUTH_PASSWORD: A password that is required to be used for the Dyn API
+
+Optionally, DEBUG can be set to anything to enable logging of cloudflare requests and responses.
+
+## Usage
+
+After setting the environment variables, simply run the tool
+
+    ./cloudflare-ddns-update
+
+## Container image / Docker
+
+This is also available as a container image, e.g. via Docker:
+
+    docker run -e CLOUDFLARE_API_TOKEN=secret -e CLOUDFLARE_ZONE=example.com -e AUTH_USERNAME=testuser -e AUTH_PASSWORD=secret ghcr.io/dploeger/cloudflare-ddns-update:latest
+
+## Helm chart
+
+TODO

cmd/cloudflare-ddns-update.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"github.com/dploeger/cloudflare-ddns-update/pkg"
+	"github.com/gin-gonic/gin"
+	"log"
+	"os"
+)
+
+func main() {
+	_, isDebug := os.LookupEnv("DEBUG")
+
+	if _, ok := os.LookupEnv("CLOUDFLARE_API_TOKEN"); !ok {
+		log.Fatalf("Missing CLOUDFLARE_API_TOKEN env variable")
+	}
+	if _, ok := os.LookupEnv("CLOUDFLARE_ZONE"); !ok {
+		log.Fatalf("Missing CLOUDFLARE_ZONE env variable")
+	}
+	if _, ok := os.LookupEnv("AUTH_USERNAME"); !ok {
+		log.Fatalf("Missing AUTH_USERNAME env variable")
+	}
+	if _, ok := os.LookupEnv("AUTH_PASSWORD"); !ok {
+		log.Fatalf("Missing AUTH_USERNAME env variable")
+	}
+
+	var api pkg.API
+	if a, err := pkg.NewAPI(os.Getenv("CLOUDFLARE_API_TOKEN"), os.Getenv("CLOUDFLARE_ZONE"), isDebug); err != nil {
+		log.Fatalf(err.Error())
+	} else {
+		api = *a
+	}
+
+	r := gin.Default()
+	r.GET("/health", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			"status": "running",
+		})
+	})
+	v3 := r.Group("v3", gin.BasicAuth(gin.Accounts{os.Getenv("AUTH_USERNAME"): os.Getenv("AUTH_PASSWORD")}))
+	v3.GET("/update", api.DDNSUpdate)
+	if err := r.Run(); err != nil {
+		log.Fatalf("Can not run service: %s", err)
+	}
+}

go.mod

@@ -0,0 +1,47 @@
+module github.com/dploeger/cloudflare-ddns-update
+
+go 1.22.0
+
+require (
+	github.com/cloudflare/cloudflare-go/v2 v2.2.0
+	github.com/gin-gonic/gin v1.10.0
+)
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/google/go-cmp v0.5.8 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/rogpeppe/go-internal v1.8.1 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/tidwall/gjson v1.14.4 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.1 // indirect
+	github.com/tidwall/sjson v1.2.5 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)