Examples with ImmutableClusterExtension org.curioswitch.gradle.plugins.gcloud.ImmutableClusterExtension used on opensource projects

Example 1 with ImmutableClusterExtension

use of org.curioswitch.gradle.plugins.gcloud.ImmutableClusterExtension in project curiostack by curioswitch.

the class RequestNamespaceCertTask method exec.

@TaskAction
public void exec() {
    ImmutableClusterExtension cluster = getProject().getExtensions().getByType(ClusterExtension.class);
    final KeyPairGenerator keygen;
    try {
        keygen = KeyPairGenerator.getInstance("ECDSA", BouncyCastleProvider.PROVIDER_NAME);
    } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
        throw new IllegalStateException("Could not find RSA, can't happen.", e);
    }
    keygen.initialize(256, new SecureRandom());
    KeyPair keyPair = keygen.generateKeyPair();
    PKCS10CertificationRequestBuilder p10Builder = new JcaPKCS10CertificationRequestBuilder(new X500Principal("CN=" + cluster.namespace() + ".ns.cluster.stellarstation.com"), keyPair.getPublic());
    Stream<GeneralName> generalNames = Streams.concat(Stream.of(new GeneralName(GeneralName.dNSName, "*." + cluster.namespace()), new GeneralName(GeneralName.dNSName, "*." + cluster.namespace() + ".svc"), new GeneralName(GeneralName.dNSName, "*." + cluster.namespace() + ".svc.cluster.local")), cluster.extraNamespaceTlsHosts().stream().map(name -> new GeneralName(GeneralName.dNSName, name)));
    GeneralNames subjectAltNames = new GeneralNames(generalNames.toArray(GeneralName[]::new));
    ExtensionsGenerator extensions = new ExtensionsGenerator();
    try {
        extensions.addExtension(Extension.subjectAlternativeName, false, subjectAltNames);
        p10Builder.setAttribute(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest, extensions.generate());
    } catch (IOException e) {
        throw new IllegalStateException("Could not encode cert name, can't happen.", e);
    }
    final ContentSigner signer;
    try {
        signer = new JcaContentSignerBuilder("SHA256withECDSA").build(keyPair.getPrivate());
    } catch (OperatorCreationException e) {
        throw new IllegalStateException("Could not find signer, can't happen.", e);
    }
    PKCS10CertificationRequest csr = p10Builder.build(signer);
    StringWriter csrWriter = new StringWriter();
    try (JcaPEMWriter pemWriter = new JcaPEMWriter(csrWriter)) {
        pemWriter.writeObject(csr);
    } catch (IOException e) {
        throw new IllegalStateException("Could not encode csr, can't happen.", e);
    }
    String encodedCsr = Base64.getEncoder().encodeToString(csrWriter.toString().getBytes(StandardCharsets.UTF_8));
    Map<Object, Object> csrApiRequest = ImmutableMap.of("apiVersion", "certificates.k8s.io/v1beta1", "kind", "CertificateSigningRequest", "metadata", ImmutableMap.of("name", cluster.namespace() + ".server.crt"), "spec", ImmutableMap.of("request", encodedCsr, "usages", ImmutableList.of("digital signature", "key encipherment", "server auth", "client auth")));
    final byte[] encodedApiRequest;
    try {
        encodedApiRequest = OBJECT_MAPPER.writeValueAsBytes(csrApiRequest);
    } catch (JsonProcessingException e) {
        throw new IllegalStateException("Could not encode yaml", e);
    }
    ImmutableGcloudExtension config = getProject().getRootProject().getExtensions().getByType(GcloudExtension.class);
    String command = config.download() ? CommandUtil.getGcloudSdkBinDir(getProject()).resolve("kubectl").toAbsolutePath().toString() : "kubectl";
    getProject().exec(exec -> {
        exec.executable(command);
        exec.args("create", "-f", "-");
        exec.setStandardInput(new ByteArrayInputStream(encodedApiRequest));
    });
    getProject().exec(exec -> {
        exec.executable(command);
        exec.args("certificate", "approve", cluster.namespace() + ".server.crt");
    });
    // Need to wait a bit for certificate to propagate before fetching.
    try {
        TimeUnit.SECONDS.sleep(5);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
    // Gradle Exec seems to be flaky when reading from stdout, so use normal ProcessBuilder.
    final byte[] certificateBytes;
    try {
        Process getCertProcess = new ProcessBuilder(command, "get", "csr", cluster.namespace() + ".server.crt", "-o", "jsonpath={.status.certificate}").start();
        certificateBytes = ByteStreams.toByteArray(getCertProcess.getInputStream());
    } catch (IOException e) {
        throw new UncheckedIOException("Could not fetch certificate.", e);
    }
    String certificate = new String(Base64.getDecoder().decode(certificateBytes), StandardCharsets.UTF_8);
    final JcaPKCS8Generator keyGenerator;
    final PemObject keyObject;
    try {
        keyGenerator = new JcaPKCS8Generator(keyPair.getPrivate(), null);
        keyObject = keyGenerator.generate();
    } catch (PemGenerationException e) {
        throw new IllegalStateException("Could not encode to pkcs8.", e);
    }
    StringWriter keyWriter = new StringWriter();
    try (JcaPEMWriter pemWriter = new JcaPEMWriter(keyWriter)) {
        pemWriter.writeObject(keyObject);
    } catch (IOException e) {
        throw new IllegalStateException("Could not encode csr, can't happen.", e);
    }
    String key = keyWriter.toString();
    KubernetesClient client = new DefaultKubernetesClient();
    Secret certificateSecret = new SecretBuilder().withMetadata(new ObjectMetaBuilder().withName("server-tls").withNamespace(cluster.namespace()).build()).withType("Opaque").withData(ImmutableMap.of("server.crt", Base64.getEncoder().encodeToString(certificate.getBytes(StandardCharsets.UTF_8)), "server-key.pem", Base64.getEncoder().encodeToString(key.getBytes(StandardCharsets.UTF_8)))).build();
    client.resource(certificateSecret).createOrReplace();
}

Example 2 with ImmutableClusterExtension

use of org.curioswitch.gradle.plugins.gcloud.ImmutableClusterExtension in project curiostack by curioswitch.

the class CreateClientCertTask method exec.

@TaskAction
public void exec() {
    ImmutableClusterExtension cluster = getProject().getExtensions().getByType(ClusterExtension.class);
    String commonName = (String) getProject().getRootProject().findProperty("commonName");
    checkNotNull(commonName, "-PcommonName must be set");
    final KeyPairGenerator keygen;
    try {
        keygen = KeyPairGenerator.getInstance("ECDSA", BouncyCastleProvider.PROVIDER_NAME);
    } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
        throw new IllegalStateException("Could not find RSA, can't happen.", e);
    }
    keygen.initialize(256, new SecureRandom());
    KeyPair keyPair = keygen.generateKeyPair();
    PKCS10CertificationRequestBuilder p10Builder = new JcaPKCS10CertificationRequestBuilder(new X500Principal("CN=" + commonName), keyPair.getPublic());
    final ContentSigner signer;
    try {
        signer = new JcaContentSignerBuilder("SHA256withECDSA").build(keyPair.getPrivate());
    } catch (OperatorCreationException e) {
        throw new IllegalStateException("Could not find signer, can't happen.", e);
    }
    PKCS10CertificationRequest csr = p10Builder.build(signer);
    StringWriter csrWriter = new StringWriter();
    try (JcaPEMWriter pemWriter = new JcaPEMWriter(csrWriter)) {
        pemWriter.writeObject(csr);
    } catch (IOException e) {
        throw new IllegalStateException("Could not encode csr, can't happen.", e);
    }
    String encodedCsr = Base64.getEncoder().encodeToString(csrWriter.toString().getBytes(StandardCharsets.UTF_8));
    String csrName = cluster.namespace() + "." + commonName + ".client.crt";
    Map<Object, Object> csrApiRequest = ImmutableMap.of("apiVersion", "certificates.k8s.io/v1beta1", "kind", "CertificateSigningRequest", "metadata", ImmutableMap.of("name", csrName), "spec", ImmutableMap.of("request", encodedCsr, "usages", ImmutableList.of("digital signature", "key encipherment", "server auth", "client auth")));
    final byte[] encodedApiRequest;
    try {
        encodedApiRequest = OBJECT_MAPPER.writeValueAsBytes(csrApiRequest);
    } catch (JsonProcessingException e) {
        throw new IllegalStateException("Could not encode yaml", e);
    }
    ImmutableGcloudExtension config = getProject().getRootProject().getExtensions().getByType(GcloudExtension.class);
    String command = config.download() ? new File(config.platformConfig().gcloudBinDir(), "kubectl").getAbsolutePath() : "kubectl";
    getProject().exec(exec -> {
        exec.executable(command);
        exec.args("create", "-f", "-");
        exec.setStandardInput(new ByteArrayInputStream(encodedApiRequest));
    });
    getProject().exec(exec -> {
        exec.executable(command);
        exec.args("certificate", "approve", csrName);
    });
    // Need to wait a bit for certificate to propagate before fetching.
    try {
        TimeUnit.SECONDS.sleep(5);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
    ByteArrayOutputStream certStream = new ByteArrayOutputStream();
    getProject().exec(exec -> {
        exec.executable(command);
        exec.args("get", "csr", csrName, "-o", "jsonpath={.status.certificate}");
        exec.setStandardOutput(certStream);
    });
    String certificate = new String(Base64.getDecoder().decode(certStream.toByteArray()), StandardCharsets.UTF_8);
    final JcaPKCS8Generator keyGenerator;
    final PemObject keyObject;
    try {
        keyGenerator = new JcaPKCS8Generator(keyPair.getPrivate(), null);
        keyObject = keyGenerator.generate();
    } catch (PemGenerationException e) {
        throw new IllegalStateException("Could not encode to pkcs8.", e);
    }
    StringWriter keyWriter = new StringWriter();
    try (JcaPEMWriter pemWriter = new JcaPEMWriter(keyWriter)) {
        pemWriter.writeObject(keyObject);
    } catch (IOException e) {
        throw new IllegalStateException("Could not encode csr, can't happen.", e);
    }
    String key = keyWriter.toString();
    KubernetesClient client = new DefaultKubernetesClient();
    Secret certificateSecret = new SecretBuilder().withMetadata(new ObjectMetaBuilder().withName(commonName + "-client-tls").withNamespace(cluster.namespace()).build()).withType("Opaque").withData(ImmutableMap.of("client.crt", Base64.getEncoder().encodeToString(certificate.getBytes(StandardCharsets.UTF_8)), "client-key.pem", Base64.getEncoder().encodeToString(key.getBytes(StandardCharsets.UTF_8)))).build();
    client.resource(certificateSecret).createOrReplace();
}

Example 3 with ImmutableClusterExtension

use of org.curioswitch.gradle.plugins.gcloud.ImmutableClusterExtension in project curiostack by curioswitch.

the class CreateClusterNamespaceTask method exec.

@TaskAction
public void exec() {
    ImmutableClusterExtension cluster = getProject().getExtensions().getByType(ClusterExtension.class);
    Namespace namespace = new NamespaceBuilder().withMetadata(new ObjectMetaBuilder().withName(cluster.namespace()).build()).build();
    KubernetesClient client = new DefaultKubernetesClient();
    client.resource(namespace).createOrReplace();
}