feat(quadlet: kube): support multiple Yaml entries

fixes https://github.com/containers/podman/issues/26274

Signed-off-by: axel7083 <42176370+axel7083@users.noreply.github.com>

docs/source/markdown/podman-systemd.unit.5.md

@@ -1392,6 +1392,9 @@ Alternatively, users can explicitly set the `WorkingDirectory` field of the `Ser
 Please note that if the `WorkingDirectory` field of the `Service` group is set,
 Quadlet will not set it even if `SetWorkingDirectory` is set
 
+Special case:
+* If multiple `Yaml` path are provided only `unit` is supported.
+
 ### `UserNS=`
 
 Set the user namespace mode for the container. This is equivalent to the Podman `--userns` option and
@@ -1401,6 +1404,8 @@ generally has the form `MODE[:OPTIONS,...]`.
 
 The path, absolute or relative to the location of the unit file, to the Kubernetes YAML file to use.
 
+This key can be listed multiple times.
+
 ## Network units [Network]
 
 Network files are named with a `.network` extension and contain a section `[Network]` describing the

pkg/systemd/quadlet/quadlet.go

@@ -1201,14 +1201,19 @@ func ConvertKube(kube *parser.UnitFile, unitsInfoMap map[string]*UnitInfo, isUse
 		return nil, err
 	}
 
-	yamlPath, ok := kube.Lookup(KubeGroup, KeyYaml)
+	yamlPaths := kube.LookupAllStrv(KubeGroup, KeyYaml)
-	if !ok || len(yamlPath) == 0 {
+	if len(yamlPaths) == 0 {
 		return nil, fmt.Errorf("no Yaml key specified")
 	}
 
-	yamlPath, err = getAbsolutePath(kube, yamlPath)
+	// Convert all yaml paths to absolute paths
-	if err != nil {
+	absoluteYamlPaths := make([]string, 0, len(yamlPaths))
-		return nil, err
+	for _, yamlPath := range yamlPaths {
+		absPath, err := getAbsolutePath(kube, yamlPath)
+		if err != nil {
+			return nil, err
+		}
+		absoluteYamlPaths = append(absoluteYamlPaths, absPath)
 	}
 
 	// Only allow mixed or control-group, as nothing else works well
@@ -1293,7 +1298,8 @@ func ConvertKube(kube *parser.UnitFile, unitsInfoMap map[string]*UnitInfo, isUse
 
 	handlePodmanArgs(kube, KubeGroup, execStart)
 
-	execStart.add(yamlPath)
+	// Add all YAML file paths to the command
+	execStart.add(absoluteYamlPaths...)
 
 	service.AddCmdline(ServiceGroup, "ExecStart", execStart.Args)
 
@@ -1307,7 +1313,8 @@ func ConvertKube(kube *parser.UnitFile, unitsInfoMap map[string]*UnitInfo, isUse
 		execStop.addBool("--force", kubeDownForce)
 	}
 
-	execStop.add(yamlPath)
+	// Add all YAML file paths to the stop command
+	execStop.add(absoluteYamlPaths...)
 	service.AddCmdline(ServiceGroup, "ExecStopPost", execStop.Args)
 
 	_, err = handleSetWorkingDirectory(kube, service, KubeGroup)
@@ -1988,10 +1995,14 @@ func handleSetWorkingDirectory(quadletUnitFile, serviceUnitFile *parser.UnitFile
 			return "", fmt.Errorf("SetWorkingDirectory=%s is only supported in .kube files", setWorkingDirectory)
 		}
 
-		relativeToFile, ok = quadletUnitFile.Lookup(quadletGroup, KeyYaml)
+		yamlPaths := quadletUnitFile.LookupAllStrv(KubeGroup, KeyYaml)
-		if !ok {
+		if len(yamlPaths) == 0 {
 			return "", fmt.Errorf("no Yaml key specified")
+		} else if len(yamlPaths) != 1 {
+			return "", fmt.Errorf("SetWorkingDirectory=yaml is only supported when a single Yaml key is provided")
 		}
+
+		relativeToFile = yamlPaths[0]
 	case "file":
 		if quadletGroup != BuildGroup {
 			return "", fmt.Errorf("SetWorkingDirectory=%s is only supported in .build files", setWorkingDirectory)

test/e2e/quadlet/multiple-yaml-set-working-dir-yaml.kube

@@ -0,0 +1,4 @@
+[Kube]
+Yaml=foo.yml
+Yaml=bar.yml
+SetWorkingDirectory=yaml

test/e2e/quadlet/multiple-yaml.kube

@@ -0,0 +1,10 @@
+## assert-podman-args "kube"
+## assert-podman-args "play"
+## assert-podman-final-args-regex .*/podman-e2e-.*/subtest-.*/quadlet/foo.yml .*/podman-e2e-.*/subtest-.*/quadlet/bar.yml
+## assert-podman-stop-post-args "kube"
+## assert-podman-stop-post-args "down"
+## assert-podman-stop-post-final-args-regex .*/podman-e2e-.*/subtest-.*/quadlet/foo.yml .*/podman-e2e-.*/subtest-.*/quadlet/bar.yml
+
+[Kube]
+Yaml=foo.yml
+Yaml=bar.yml

test/e2e/quadlet_test.go

@@ -996,6 +996,7 @@ BOGUS=foo
 		Entry("Kube - Working Directory YAML Absolute Path", "workingdir-yaml-abs.kube"),
 		Entry("Kube - Working Directory YAML Relative Path", "workingdir-yaml-rel.kube"),
 		Entry("Kube - Working Directory Unit", "workingdir-unit.kube"),
+		Entry("Kube - Multiple YAML entries", "multiple-yaml.kube"),
 		Entry("Kube - Working Directory already in Service", "workingdir-service.kube"),
 		Entry("Kube - global args", "globalargs.kube"),
 		Entry("Kube - Containers Conf Modules", "containersconfmodule.kube"),
@@ -1139,6 +1140,7 @@ BOGUS=foo
 		Entry("Volume - Quadlet image (.image) not found", "image-not-found.quadlet.volume", "converting \"image-not-found.quadlet.volume\": requested Quadlet image not-found.image was not found"),
 
 		Entry("Kube - User Remap Manual", "remap-manual.kube", "converting \"remap-manual.kube\": RemapUsers=manual is not supported"),
+		Entry("Kube - Multiple Yaml and SetWorkingDir=yaml", "multiple-yaml-set-working-dir-yaml.kube", "converting \"multiple-yaml-set-working-dir-yaml.kube\": SetWorkingDirectory=yaml is only supported when a single Yaml key is provided quadlet-generator"),
 
 		Entry("Network - Gateway not enough Subnet", "gateway.less-subnet.network", "converting \"gateway.less-subnet.network\": cannot set more gateways than subnets"),
 		Entry("Network - Gateway without Subnet", "gateway.no-subnet.network", "converting \"gateway.no-subnet.network\": cannot set gateway or range without subnet"),