update readme

.gitea/workflows/action.yaml

@@ -1,18 +1,6 @@
 name: 'Build docker container'
 on: 
- workflow_dispatch:
+ release:
-    inputs:
-      branch:
-        description: "Select branch to build"
-        required: true
-        type: choice
-        options:
-          - 9.0-alpine-24
-          - 9.0-alpine-23
-          - 9.0-alpine-22
-          - 9.0-alpine-21
-          - 8.0-alpine-22
-          - 8.0-alpine-21
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -22,83 +10,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Set build variables for docker build
-        id: variables-test
-        uses: https://git.claeyscloud.com/david/gitea-actions/conditional-variables@main
-        with:
-          context: |
-            branch=${{ inputs.branch }}
-          rules: |
-            - conditions:
-               - branch == 9.0-alpine-24
-               - branch == 9.0-alpine-23
-              set:
-                 DOTNET_SDK_VERSION=9.0
-                 DOTNET_RUNTIME_VERSION=9.0.18
-            - conditions:
-               - branch == 9.0-alpine-24
-              set:
-                 ALPINE_VERSION=24
-      - name: Dump contexts 
-        env:    
-           GITEA_CONTEXT: ${{ toJson(gitea) }}
-           JOB_CONTEXT: ${{ toJson(job) }}
-           RUNNER_CONTEXT: ${{ toJson(runner) }}
-           STRATEGY_CONTEXT: ${{ toJson(strategy) }}
-           MATRIX_CONTEXT: ${{ toJson(matrix) }}
-        run: |
-            echo "=== ENVIRONMENT VARIABLES ==="
-            echo '${{ toJson(steps.variables-test.outputs) }}'
-            # echo "$GITEA_CONTEXT"
-            # echo "$JOB_CONTEXT"
-            # echo "$RUNNER_CONTEXT"
-            # echo "$STRATEGY_CONTEXT"
-            # echo "$MATRIX_CONTEXT"
-      - name: Set build variables for docker build
-        id: variables
-        run: |
-            case "${{ inputs.branch }}" in
-              9.0-alpine-24)
-                echo "DOTNET_SDK_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=9.0.18" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.24" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=true" >> $GITHUB_OUTPUT
-                ;;
-              9.0-alpine-23)
-                echo "DOTNET_SDK_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=9.0.18" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.23" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=false" >> $GITHUB_OUTPUT
-                ;;
-              9.0-alpine-22)
-                echo "DOTNET_SDK_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.22" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=false" >> $GITHUB_OUTPUT
-                ;;
-              9.0-alpine-21)
-                echo "DOTNET_SDK_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=9.0" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.21" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=false" >> $GITHUB_OUTPUT
-                ;;
-              8.0-alpine-22)
-                echo "DOTNET_SDK_VERSION=8.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=8.0" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.22" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=false" >> $GITHUB_OUTPUT
-                ;;
-              8.0-alpine-21)
-                echo "DOTNET_SDK_VERSION=8.0" >> $GITHUB_OUTPUT
-                echo "DOTNET_RUNTIME_VERSION=8.0" >> $GITHUB_OUTPUT
-                echo "ALPINE_VERSION=3.21" >> $GITHUB_OUTPUT
-                echo "IS_LATEST=false" >> $GITHUB_OUTPUT
-                ;;
-              *)
-                echo "Unsupported branch"
-                exit 1
-                ;;
-            esac
       - name: Install Docker
         run: |
             echo "Checking docker installation"
@@ -115,19 +26,19 @@ jobs:
         with:
           registry: git.claeyscloud.com
           username: nologin
-          password: ${{ secrets.PACKAGE_TOKEN }}  
+          password: ${{ secrets.PACKAGE_TOKEN }}
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5
         with:
             labels: |
-                org.opencontainers.image.documentation=https://git.claeyscloud.com/david/net-base/README.md
+                org.opencontainers.image.documentation=https://git.claeyscloud.com/david/epg-info-docker/src/branch/main/README.md
             images: |
                 git.claeyscloud.com/david/net-base
             tags: |
-                type=raw,value=${{ inputs.branch }}
+               type=semver,pattern={{raw}}
-                type=raw,value=latest,enable=${{ steps.variables.outputs.IS_LATEST == 'true' }}
+               type=sha
-                type=sha
+               type=semver,pattern={{version}}
       - name: Generate random password for certificate
         id: password
         run:
@@ -135,11 +46,7 @@ jobs:
       - name: Build and push
         uses: https://github.com/docker/build-push-action@v5
         with:
-          build-args: |
+          build-args: CERT_PASSWORD=${{ steps.password.outputs.secret }}           
-             CERT_PASSWORD=${{ steps.password.outputs.secret }}           
-             DOTNET_SDK_VERSION=${{ steps.variables.outputs.DOTNET_SDK_VERSION }}
-             DOTNET_RUNTIME_VERSION=${{ steps.variables.outputs.DOTNET_RUNTIME_VERSION }}
-             ALPINE_VERSION=${{ steps.variables.outputs.ALPINE_VERSION }}
           context: .
           push: true
           tags: ${{ steps.meta.outputs.tags }}            

Dockerfile

@@ -1,9 +1,9 @@
 ARG CERT_PASSWORD
-ARG DOTNET_SDK_VERSION=10.0.100
+ARG DOTNET_SDK_VERSION=9.0.315
-ARG DOTNET_RUNTIME_VERSION=10.0.0
+ARG DOTNET_RUNTIME_VERSION=9.0.17
-ARG ALPINE_VERSION=3.22
+ARG ALPINE_VERSION=3.23
 ARG CONFIG_DIRECTORY_ARG=/config
-FROM mcr.microsoft.com/dotnet/sdk:${DOTNET_SDK_VERSION}-alpine${ALPINE_VERSION} AS build-env
+FROM mcr.microsoft.com/dotnet/sdk:${DOTNET_SDK_VERSION}-alpine${ALPINE_VERSION}-amd64 AS build-env
 ARG CONFIG_DIRECTORY_ARG
 ENV CONFIG_DIRECTORY=$CONFIG_DIRECTORY_ARG
 ARG CERT_PASSWORD
@@ -13,7 +13,7 @@ RUN mkdir $CONFIG_DIRECTORY \
   && rm -rf /var/cache/apk/* \
   && dotnet dev-certs https --export-path /config/aspnetapp.pem --password "$CERT_PASSWORD" --format PEM
 
-FROM mcr.microsoft.com/dotnet/aspnet:${DOTNET_RUNTIME_VERSION}-alpine${ALPINE_VERSION}
+FROM mcr.microsoft.com/dotnet/aspnet:${DOTNET_RUNTIME_VERSION}-alpine${ALPINE_VERSION}-amd64
 ARG CONFIG_DIRECTORY_ARG
 ENV CONFIG_DIRECTORY=$CONFIG_DIRECTORY_ARG
 ENV DOTNET_CLI_TELEMETRY_OPTOUT=1

README.md

@@ -66,9 +66,9 @@ docker build --build-arg CERT_PASSWORD=supersecretpassword . -t net-base
 | Argument                                            | Description                                                             | Default                                                                                      |
 |-----------------------------------------------------|-------------------------------------------------------------------------|----------------------------------------------------------------------------------------------|
 | CERT_PASSWORD                                       | The password for the generated certificate                              | N/A **(required)**                                                                           |
-| DOTNET_SDK_VERSION                                  | The [SDK](https://mcr.microsoft.com/en-us/artifact/mar/dotnet/sdk/tags) version used to generate the development certificate | 10.0.100                                 |
+| DOTNET_SDK_VERSION                                  | The [SDK](https://mcr.microsoft.com/en-us/artifact/mar/dotnet/sdk/tags) version used to generate the development certificate | 9.0.315                                 |
-| DOTNET_RUNTIME_VERSION                              | The [runtime](https://mcr.microsoft.com/en-us/artifact/mar/dotnet/aspnet/tags) version used as a base | 10.0.0                                                          |
+| DOTNET_RUNTIME_VERSION                              | The [runtime](https://mcr.microsoft.com/en-us/artifact/mar/dotnet/aspnet/tags) version used as a base | 9.0.17                                                        |
-| ALPINE_VERSION                                      | The version of [alpine linux](https://www.alpinelinux.org/) used as a base| 3.22                                                                                       |
+| ALPINE_VERSION                                      | The version of [alpine linux](https://www.alpinelinux.org/) used as a base| 3.23                                                                                       |
 
 ## Security implications
 
@@ -93,25 +93,8 @@ Depending on your use-case you event might consider to use docker networking in
 The included certificate is generated through the _dotnet dev-certs_ command. This is a very convenient and suitable way to generate development certificates through the dotnet SDK.
 
 The password used to generate the certificate is randomly generated through the `openssl rand -base64 12` at build time.
-If you inspect the image layers you'll able to easily see it.
+The build agent used for the build is hosted on my own infrastructure but I don't have any access to it (neither do I intend to do so).<br/>
-I think this is fine for development purposes and just want to get things up and running, although this is not recommended for production use at all.
+However if you feel uncomfortable with this fact, feel free to build the image yourself.
-You can generate your own password and certificates in the following way :
-
-```sh
-# generate a random secure password
-openssl rand -base64 12
-# use the .net cli to generate your own certificates with your chosen password
-dotnet dev-certs https --export-path /config/aspnetapp.pem --password "YOUR PASSWORD" --format PEM
-```
-After this you only need to map your own certificates with the **ASPNETCORE_Kestrel__Certificates__** variables.
-
-### Versioning
-
-Recently Microsoft decided to update the base images to alpine 3.22.
-Before 2025-11-11 the latest supported version was alpine 3.21.
-In order to support these changes the naming scheme will need to be changed.
-Going forward specefic tags will be vailable for the different versions: by example `9.0.11-alpine-21` and `9.0.11-alpine-22`.
-By default alpine 22 will be used and the older versions will be supported as long Microsoft does.
 
 ## FAQ