chore: align with docker-ssh-agent build process

.gitignore

@@ -2,4 +2,4 @@
 bats-core/
 bats/
 target/
-build-windows-current.yaml
+build-windows_*.yaml

Jenkinsfile

@@ -1,14 +1,14 @@
 def agentSelector(String imageType) {
-    // Image type running on a Linux agent
+    // Linux agent
     if (imageType == 'linux') {
         // Need Docker and a LOT of memory for faster builds (due to multi archs) or fallback to linux (trusted.ci)
         return 'docker-highmem || linux'
     }
-    // Image types running on a Windows Server Core 2022 agent
+    // Windows Server Core 2022 agent
     if (imageType.contains('2022')) {
         return 'windows-2022'
     }
-    // Remaining image types running on a Windows Server Core 2019 agent: (nanoserver|windowservercore)-(1809|2019)
+    // Windows Server Core 2019 agent (for nanoserver 1809 & ltsc2019 and for windowservercore ltsc2019)
     return 'windows-2019'
 }
 
@@ -37,18 +37,15 @@ pipeline {
                             timeout(time: 60, unit: 'MINUTES')
                         }
                         environment {
-                            DOCKERHUB_ORGANISATION = "${infra.isTrusted() ? 'jenkins' : 'jenkins4eval'}"
+                            REGISTRY_ORG = "${infra.isTrusted() ? 'jenkins' : 'jenkins4eval'}"
                         }
                         stages {
                             stage('Prepare Docker') {
                                 when {
                                     environment name: 'IMAGE_TYPE', value: 'linux'
                                 }
                                 steps {
-                                    sh '''
-                                    docker buildx create --use
-                                    docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-                                    '''
+                                    sh 'make docker-init'
                                 }
                             }
                             stage('Build and Test') {
@@ -58,18 +55,19 @@ pipeline {
                                 }
                                 steps {
                                     script {
-                                        if(isUnix()) {
+                                        if (isUnix()) {
                                             sh './build.sh'
                                             sh './build.sh test'
                                             // If the tests are passing for Linux AMD64, then we can build all the CPU architectures
-                                            sh 'docker buildx bake --file docker-bake.hcl linux'
+                                            sh 'make every-build'
                                         } else {
                                             powershell '& ./build.ps1 test'
                                         }
                                     }
                                 }
                                 post {
                                     always {
+                                        archiveArtifacts artifacts: 'build-windows_*.yaml', allowEmptyArchive: true
                                         junit(allowEmptyResults: true, keepLongStdio: true, testResults: 'target/**/junit-results*.xml')
                                     }
                                 }
@@ -83,18 +81,17 @@ pipeline {
                                     script {
                                         def tagItems = env.TAG_NAME.split('-')
                                         if(tagItems.length == 2) {
-                                            def remotingVersion = tagItems[0]
-                                            def buildNumber = tagItems[1]
-                                            // This function is defined in the jenkins-infra/pipeline-library
-                                            infra.withDockerCredentials {
-                                                if (isUnix()) {
-                                                    sh """
-                                                    docker buildx create --use
-                                                    docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-                                                    ./build.sh -r ${remotingVersion} -b ${buildNumber} -d publish
-                                                    """
-                                                } else {
-                                                    powershell "& ./build.ps1 -RemotingVersion $remotingVersion -BuildNumber $buildNumber -DisableEnvProps publish"
+                                            withEnv(
+                                                ["REMOTING_VERSION=${tagItems[0]}"],
+                                                ["BUILD_NUMBER=${tagItems[1]}"]
+                                            ) {
+                                                // This function is defined in the jenkins-infra/pipeline-library
+                                                infra.withDockerCredentials {
+                                                    if (isUnix()) {
+                                                        sh 'make publish'
+                                                    } else {
+                                                        powershell '& ./build.ps1 publish'
+                                                    }
                                                 }
                                             }
                                         } else {

Makefile

@@ -16,7 +16,8 @@ check_cli = type "$(1)" >/dev/null 2>&1 || { echo "Error: command '$(1)' require
 ## Check if a given image exists in the current manifest docker-bake.hcl
 check_image = make --silent list | grep -w '$(1)' >/dev/null 2>&1 || { echo "Error: the image '$(1)' does not exist in manifest for the platform 'linux/$(ARCH)'. Please check the output of 'make list'. Exiting." ; exit 1 ; }
 ## Base "docker buildx base" command to be reused everywhere
-bake_base_cli := docker buildx bake -f docker-bake.hcl --load
+bake_base_cli := docker buildx bake --file docker-bake.hcl
+bake_cli := $(bake_base_cli) --load
 
 .PHONY: build
 .PHONY: test test-alpine test-archlinux test-debian test-jdk11 test-jdk11-alpine
@@ -31,16 +32,24 @@ check-reqs:
 	@$(call check_cli,curl)
 	@$(call check_cli,jq)
 
+## This function is specific to Jenkins infrastructure and isn't required in other contexts
+docker-init: check-reqs
+	@set -x; docker buildx create --use
+	docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+
 build: check-reqs
-	@set -x; $(bake_base_cli) --set '*.platform=linux/$(ARCH)' $(shell make --silent list)
+	@set -x; $(bake_cli) $(shell make --silent list) --set '*.platform=linux/$(ARCH)'
 
 build-%:
 	@$(call check_image,$*)
 	@echo "== building $*"
-	@set -x; $(bake_base_cli) --set '*.platform=linux/$(ARCH)' '$*'
+	@set -x; $(bake_cli) '$*' --set '*.platform=linux/$(ARCH)'
+
+every-build: check-reqs
+	@set -x; $(bake_base_cli) linux
 
 show:
-	@$(bake_base_cli) linux --print
+	@$(bake_cli) linux --print
 
 list: check-reqs
 	@set -x; make --silent show | jq -r '.target | path(.. | select(.platforms[] | contains("linux/$(ARCH)"))?) | add'
@@ -52,6 +61,9 @@ prepare-test: bats check-reqs
 	git submodule update --init --recursive
 	mkdir -p target
 
+publish:
+	@set -x; $(bake_base_cli) linux --push
+
 ## Define bats options based on environment
 # common flags for all tests
 bats_flags := ""
@@ -73,10 +85,7 @@ test-%: prepare-test
 	@echo "== testing $*"
 	set -x
 # Each type of image ("agent" or "inbound-agent") has its own tests suite
-	IMAGE=$* bats/bin/bats $(CURDIR)/tests/tests_$(shell echo $* |  cut -d "_" -f 1).bats $(bats_flags) | tee target/results-$*.tap
-# convert TAP to JUNIT
-	docker run --rm -v "$(CURDIR)":/usr/src/app -w /usr/src/app node:16-alpine \
-		sh -c "npm install tap-xunit -g && cat target/results-$*.tap | tap-xunit --package='jenkinsci.docker.$*' > target/junit-results-$*.xml"
+	IMAGE=$* bats/bin/bats $(CURDIR)/tests/tests_$(shell echo $* |  cut -d "_" -f 1).bats $(bats_flags) --formatter junit | tee target/junit-results-$*.xml
 
 test: prepare-test
 	@make --silent list | while read image; do make --silent "test-$${image}"; done

README.md

@@ -19,3 +19,206 @@ See [the `agent` README](./README_agent.md)
 This is an image based on `agent` for [Jenkins](https://jenkins.io) agents using TCP or WebSockets to establish inbound connection to the Jenkins controller.
 
 See [the `inbound-agent` README](./README_inbound-agent.md)
+
+## Building
+
+### Building and testing on Linux
+
+#### Target images
+
+If you want to see the target images (matching your current architecture) that will be built, you can issue the following command:
+
+```bash
+$ make list
+agent_alpine_jdk21
+agent_debian_jdk11
+agent_debian_jdk17
+agent_debian_jdk21
+inbound-agent_alpine_jdk21
+inbound-agent_debian_jdk11
+inbound-agent_debian_jdk17
+inbound-agent_debian_jdk21
+```
+
+#### Building a specific image
+
+If you want to build a specific image, you can issue the following command:
+
+```bash
+make build-<AGENT_TYPE>_<LINUX_FLAVOR>_<JDK_VERSION>
+```
+
+That would give for an image of an inbound agent with JDK 17 on Debian:
+
+```bash
+make build-inbound-agent_debian_jdk17
+```
+
+#### Building images supported by your current architecture
+
+Then, you can build the images supported by your current architecture by running:
+
+```bash
+make build
+```
+
+#### Testing all images
+
+If you want to test these images, you can run:
+
+```bash
+make test
+```
+#### Testing a specific image
+
+If you want to test a specific image, you can run:
+
+```bash
+make test-<AGENT_TYPE>_<LINUX_FLAVOR>_<JDK_VERSION>
+```
+
+That would give for an image of an inbound agent with JDK 17 on Debian:
+
+```bash
+make test-inbound-agent_debian_jdk17
+```
+
+#### Building all images
+
+You can build all images (even those unsupported by your current architecture) by running:
+
+```bash
+make every-build
+```
+
+#### Other `make` targets
+
+`show` gives us a detailed view of the images that will be built, with the tags, platforms, and Dockerfiles.
+
+```bash
+$ make show
+{
+  "group": {
+    "alpine": {
+      "targets": [
+        "agent_alpine_jdk11",
+        "agent_alpine_jdk17",
+        "agent_alpine_jdk21",
+        "inbound-agent_alpine_jdk11",
+        "inbound-agent_alpine_jdk17",
+        "inbound-agent_alpine_jdk21"
+      ]
+    },
+    "debian": {
+      "targets": [
+        "agent_debian_jdk11",
+        "agent_debian_jdk17",
+        "agent_debian_jdk21",
+        "inbound-agent_debian_jdk11",
+        "inbound-agent_debian_jdk17",
+        "inbound-agent_debian_jdk21"
+      ]
+    },
+    "default": {
+      "targets": [
+        "linux"
+      ]
+    },
+    "linux": {
+      "targets": [
+        "agent_archlinux_jdk11",
+        "alpine",
+        "debian"
+      ]
+    }
+  },
+  "target": {
+    "agent_alpine_jdk11": {
+      "context": ".",
+      "dockerfile": "alpine/Dockerfile",
+      "args": {
+        "ALPINE_TAG": "3.20.1",
+        "JAVA_VERSION": "11.0.23_9",
+        "VERSION": "3256.v88a_f6e922152"
+      },
+      "tags": [
+        "docker.io/jenkins/agent:alpine-jdk11",
+        "docker.io/jenkins/agent:alpine3.20-jdk11",
+        "docker.io/jenkins/agent:latest-alpine-jdk11",
+        "docker.io/jenkins/agent:latest-alpine3.20-jdk11"
+      ],
+      "target": "agent",
+      "platforms": [
+        "linux/amd64"
+      ],
+      "output": [
+        "type=docker"
+      ]
+    },
+    [...]
+```
+
+`bats` is a dependency target. It will update the [`bats` submodule](https://github.com/bats-core/bats-core) and run the tests.
+
+```bash
+make bats
+make: 'bats' is up to date.
+```
+
+`publish` allows the publication of all images targeted by 'linux' to a registry.
+
+`docker-init` is dedicated to Jenkins infrastructure for initializing docker and isn't required in other contexts.
+
+### Building and testing on Windows
+
+#### Building all images
+
+Run `.\build.ps1` to launch the build of the images corresponding to the "windows" target of docker-bake.hcl.
+
+Internally, the first time you'll run this script and if there is no build-windows_<AGENT_TYPE>_<WINDOWS_FLAVOR>_<WINDOWS_VERSION>.yaml file in your repository, it will use a combination of `docker buildx bake` and `yq` to generate a  build-windows_<AGENT_TYPE>_<WINDOWS_FLAVOR>_<WINDOWS_VERSION>.yaml docker compose file containing all Windows image definitions from docker-bake.hcl. Then it will run `docker compose` on this file to build these images.
+
+You can modify this docker compose file as you want, then rerun `.\build.ps1`.
+It won't regenerate the docker compose file from docker-bake.hcl unless you add the `-OverwriteDockerComposeFile` build.ps1 parameter:  `.\build.ps1 -OverwriteDockerComposeFile`.
+
+Note: you can generate this docker compose file from docker-bake.hcl yourself with the following command (require `docker buildx` and `yq`):
+
+```console
+# - Use docker buildx bake to output image definitions from the "windows" bake target
+# - Convert with yq to the format expected by docker compose
+# - Store the result in the docker compose file
+
+$ docker buildx bake --progress=plain --file=docker-bake.hcl windows --print `
+    | yq --prettyPrint '.target[] | del(.output) | {(. | key): {\"image\": .tags[0], \"build\": .}}' | yq '{\"services\": .}' `
+    | Out-File -FilePath build-windows_mybuild.yaml
+```
+
+Note that you don't need build.ps1 to build (or to publish) your images from this docker compose file, you can use `docker compose --file=build-windows_mybuild.yaml build`.
+
+#### Testing all images
+
+Run `.\build.ps1 test` if you also want to run the tests harness suit.
+
+Run `.\build.ps1 test -TestsDebug 'debug'` to also get commands & stderr of tests, displayed on top of them.
+You can set it to `'verbose'` to also get stdout of every test command.
+
+Note that instead of passing `-TestsDebug` parameter to build.ps1, you can set the  $env:TESTS_DEBUG environment variable to the desired value.
+
+Also note that contrary to the Linux part, you have to build the images before testing them.
+
+#### Dry run
+
+Add the `-DryRun` parameter to print out any build, publish or tests commands instead of executing them: `.\build.ps1 test -DryRun`
+
+#### Building and testing a specific image
+
+You can build (and test) only one image type by setting `-ImageType` to a combination of Windows flavors ("nanoserver" & "windowsservercore") and Windows versions ("1809", "ltsc2019", "ltsc2022").
+
+Ex: `.\build.ps1 -ImageType 'nanoserver-ltsc2019'`
+
+Warning: trying to build `windowsservercore-1809` will fail as there is no corresponding image from Microsoft.
+
+You can also build (and test) only one agent type by setting `-AgentType` to either "agent" or "inbound-agent".
+
+Ex: `.\build.ps1 -AgentType 'agent'`
+
+Both parameters can be combined.