#264 Support for passing values as file in Helm

Author: tomaszmichalak

src/main/java/com/dajudge/kindcontainer/helm/InstallFluent.java

@@ -17,7 +17,9 @@ public class InstallFluent<P> {
     private final P parent;
     private String namespace;
     private boolean createNamespace;
-    private Map<String, String> params = new HashMap<>();
+    private final Map<String, String> params = new HashMap<>();
+
+    private final List<String> values = new ArrayList<>();
 
     public InstallFluent(final ExecInContainer c, final P parent) {
         this.c = c;
@@ -29,6 +31,11 @@ public InstallFluent<P> set(final String key, final String value) {
         return this;
     }
 
+    public InstallFluent<P> values(final String path) {
+        values.add(path);
+        return this;
+    }
+
     public InstallFluent<P> namespace(final String namespace) {
         this.namespace = namespace;
         return this;
@@ -53,10 +60,11 @@ public P run(final String releaseName, final String chart) throws IOException, I
             if (createNamespace) {
                 cmdline.add("--create-namespace");
             }
-            params.forEach((k, v) -> {
-                cmdline.addAll(asList("--set", String.format("%s=%s", k, v)));
-            });
+            params.forEach((k, v) -> cmdline.addAll(asList("--set", String.format("%s=%s", k, v))));
             cmdline.addAll(asList(releaseName, chart));
+            values.forEach(v -> {
+                cmdline.addAll(asList("-f", v));
+            });
             c.safeExecInContainer(cmdline.toArray(new String[]{}));
             return parent;
         } finally {

src/test/java/com/dajudge/kindcontainer/Helm3Test.java

@@ -5,6 +5,7 @@
 import org.junit.jupiter.api.TestFactory;
 
 import java.util.stream.Stream;
+import org.testcontainers.utility.MountableFile;
 
 import static com.dajudge.kindcontainer.util.ContainerVersionHelpers.allContainers;
 import static com.dajudge.kindcontainer.util.ContainerVersionHelpers.runWithK8s;
@@ -20,18 +21,20 @@ public Stream<DynamicTest> can_install_something() {
 
     private void assertCanInstallSomething(final KubernetesTestPackage<? extends KubernetesContainer<?>> testPkg) {
         runWithK8s(configureContainer(testPkg.newContainer()), k8s -> runWithClient(k8s, client -> {
-            assertFalse(client.apps().deployments().inNamespace("kubernetes-replicator").list().getItems().isEmpty());
+            assertFalse(client.apps().deployments().inNamespace("hello").list().getItems().isEmpty());
         }));
     }
 
     private KubernetesContainer<?> configureContainer(KubernetesContainer<?> container) {
         return container.withHelm3(helm -> {
-            helm.repo.add.run("mittwald", "https://helm.mittwald.de");
+            helm.copyFileToContainer(MountableFile.forClasspathResource("hello-values.yaml"), "/apps/values.yaml");
+            helm.repo.add.run("examples", "https://helm.github.io/examples");
             helm.repo.update.run();
             helm.install
-                    .namespace("kubernetes-replicator")
+                    .namespace("hello")
                     .createNamespace()
-                    .run("kubernetes-replicator", "mittwald/kubernetes-replicator");
+                    .values("/apps/values.yaml")
+                    .run("hello", "examples/hello-world");
         });
     }
 }

src/test/resources/hello-values.yaml

@@ -0,0 +1 @@
+replicaCount: 2