add ability to inject environment variables globally into launched processes

airbyte-config/models/src/main/java/io/airbyte/config/Configs.java

@@ -228,6 +228,13 @@ public interface Configs {
    */
   String getJobMainContainerMemoryLimit();
 
+  /**
+   * Defines a default map of environment variables to use for any launched job containers. The
+   * expected format is a JSON encoded String -> String map. Make sure to escape properly. Defaults to
+   * an empty map.
+   */
+  Map<String, String> getJobDefaultEnvMap();
+
   // Jobs - Kube only
   /**
    * Define one or more Job pod tolerations. Tolerations are separated by ';'. Each toleration

airbyte-config/models/src/main/java/io/airbyte/config/EnvConfigs.java

@@ -7,6 +7,7 @@
 import com.google.common.base.Preconditions;
 import com.google.common.base.Splitter;
 import com.google.common.base.Strings;
+import io.airbyte.commons.json.Jsons;
 import io.airbyte.commons.version.AirbyteVersion;
 import io.airbyte.config.helpers.LogClientSingleton;
 import io.airbyte.config.helpers.LogConfigs;
@@ -77,6 +78,7 @@ public class EnvConfigs implements Configs {
   public static final String JOB_MAIN_CONTAINER_CPU_LIMIT = "JOB_MAIN_CONTAINER_CPU_LIMIT";
   public static final String JOB_MAIN_CONTAINER_MEMORY_REQUEST = "JOB_MAIN_CONTAINER_MEMORY_REQUEST";
   public static final String JOB_MAIN_CONTAINER_MEMORY_LIMIT = "JOB_MAIN_CONTAINER_MEMORY_LIMIT";
+  public static final String JOB_DEFAULT_ENV_MAP = "JOB_DEFAULT_ENV_MAP";
   private static final String SECRET_PERSISTENCE = "SECRET_PERSISTENCE";
   public static final String JOB_KUBE_MAIN_CONTAINER_IMAGE_PULL_SECRET = "JOB_KUBE_MAIN_CONTAINER_IMAGE_PULL_SECRET";
   private static final String PUBLISH_METRICS = "PUBLISH_METRICS";
@@ -481,6 +483,11 @@ public String getJobMainContainerMemoryLimit() {
     return getEnvOrDefault(JOB_MAIN_CONTAINER_MEMORY_LIMIT, DEFAULT_JOB_MEMORY_REQUIREMENT);
   }
 
+  @Override
+  public Map<String, String> getJobDefaultEnvMap() {
+    return (Map<String, String>) Jsons.deserialize(getEnvOrDefault(JOB_DEFAULT_ENV_MAP, Jsons.serialize(Map.of())), Map.class);
+  }
+
   @Override
   public LogConfigs getLogConfigs() {
     return logConfigs;

airbyte-config/models/src/test/java/io/airbyte/config/EnvConfigsTest.java

@@ -6,6 +6,7 @@
 
 import static org.mockito.Mockito.when;
 
+import io.airbyte.commons.json.Jsons;
 import io.airbyte.commons.version.AirbyteVersion;
 import java.nio.file.Paths;
 import java.util.List;
@@ -204,4 +205,14 @@ void testworkerKubeNodeSelectors() {
     Assertions.assertEquals(config.getJobKubeNodeSelectors(), Map.of("airbyte", "server", "something", "nothing"));
   }
 
+  @Test
+  void testEnvMapRetrieval() {
+    when(function.apply(EnvConfigs.JOB_DEFAULT_ENV_MAP)).thenReturn(Jsons.serialize(Map.of()));
+    Assertions.assertEquals(Map.of(), config.getJobDefaultEnvMap());
+
+    final var map = Map.of("ENV1", "VAL1", "ENV2", "VAL\"2WithQuotesand$ymbols");
+    when(function.apply(EnvConfigs.JOB_DEFAULT_ENV_MAP)).thenReturn(Jsons.serialize(map));
+    Assertions.assertEquals(map, config.getJobDefaultEnvMap());
+  }
+
 }

airbyte-workers/src/main/java/io/airbyte/workers/WorkerConfigs.java

@@ -21,6 +21,7 @@ public class WorkerConfigs {
   private final String jobSocatImage;
   private final String jobBusyboxImage;
   private final String jobCurlImage;
+  private final Map<String, String> envMap;
 
   public WorkerConfigs(final Configs configs) {
     this.workerEnvironment = configs.getWorkerEnvironment();
@@ -36,6 +37,7 @@ public WorkerConfigs(final Configs configs) {
     this.jobSocatImage = configs.getJobKubeSocatImage();
     this.jobBusyboxImage = configs.getJobKubeBusyboxImage();
     this.jobCurlImage = configs.getJobKubeCurlImage();
+    this.envMap = configs.getJobDefaultEnvMap();
   }
 
   public Configs.WorkerEnvironment getWorkerEnvironment() {
@@ -74,4 +76,8 @@ public String getJobCurlImage() {
     return jobCurlImage;
   }
 
+  public Map<String, String> getEnvMap() {
+    return envMap;
+  }
+
 }

airbyte-workers/src/main/java/io/airbyte/workers/process/DockerProcessFactory.java

@@ -146,6 +146,12 @@ public Process create(final String jobId,
             "--log-driver",
             "none");
       }
+
+      for (final var envEntry : workerConfigs.getEnvMap().entrySet()) {
+        cmd.add("-e");
+        cmd.add(envEntry.getKey() + "=" + envEntry.getValue());
+      }
+
       if (!Strings.isNullOrEmpty(entrypoint)) {
         cmd.add("--entrypoint");
         cmd.add(entrypoint);

airbyte-workers/src/main/java/io/airbyte/workers/process/KubePodProcess.java

@@ -16,6 +16,7 @@
 import io.fabric8.kubernetes.api.model.ContainerPortBuilder;
 import io.fabric8.kubernetes.api.model.ContainerStatus;
 import io.fabric8.kubernetes.api.model.DeletionPropagation;
+import io.fabric8.kubernetes.api.model.EnvVar;
 import io.fabric8.kubernetes.api.model.LocalObjectReference;
 import io.fabric8.kubernetes.api.model.Pod;
 import io.fabric8.kubernetes.api.model.PodBuilder;
@@ -134,7 +135,6 @@ public class KubePodProcess extends Process {
   private final Duration statusCheckInterval;
   private final int stdoutLocalPort;
   private final ServerSocket stderrServerSocket;
-  private final Map<Integer, Integer> internalToExternalPorts;
   private final int stderrLocalPort;
   private final ExecutorService executorService;
 
@@ -173,6 +173,7 @@ private static Container getMain(final String image,
                                    final List<VolumeMount> mainVolumeMounts,
                                    final ResourceRequirements resourceRequirements,
                                    final Map<Integer, Integer> internalToExternalPorts,
+                                   final Map<String, String> envMap,
                                    final String[] args)
       throws IOException {
     final var argsStr = String.join(" ", args);
@@ -196,12 +197,17 @@ private static Container getMain(final String image,
             .build())
         .collect(Collectors.toList());
 
+    final List<EnvVar> envVars = envMap.entrySet().stream()
+        .map(entry -> new EnvVar(entry.getKey(), entry.getValue(), null))
+        .collect(Collectors.toList());
+
     final ContainerBuilder containerBuilder = new ContainerBuilder()
         .withName("main")
         .withPorts(containerPorts)
         .withImage(image)
         .withImagePullPolicy(imagePullPolicy)
         .withCommand("sh", "-c", mainCommand)
+        .withEnv(envVars)
         .withWorkingDir(CONFIG_DIR)
         .withVolumeMounts(mainVolumeMounts);
 
@@ -333,17 +339,16 @@ public KubePodProcess(final boolean isOrchestrator,
                         final String socatImage,
                         final String busyboxImage,
                         final String curlImage,
+                        final Map<String, String> envMap,
                         final Map<Integer, Integer> internalToExternalPorts,
                         final String... args)
       throws IOException, InterruptedException {
     this.fabricClient = fabricClient;
     this.statusCheckInterval = statusCheckInterval;
     this.stdoutLocalPort = stdoutLocalPort;
     this.stderrLocalPort = stderrLocalPort;
-
     this.stdoutServerSocket = new ServerSocket(stdoutLocalPort);
     this.stderrServerSocket = new ServerSocket(stderrLocalPort);
-    this.internalToExternalPorts = internalToExternalPorts;
     this.executorService = Executors.newFixedThreadPool(2);
     setupStdOutAndStdErrListeners();
 
@@ -394,6 +399,7 @@ public KubePodProcess(final boolean isOrchestrator,
         List.of(pipeVolumeMount, configVolumeMount, terminationVolumeMount),
         resourceRequirements,
         internalToExternalPorts,
+        envMap,
         args);
 
     final io.fabric8.kubernetes.api.model.ResourceRequirements sidecarResources = getResourceRequirementsBuilder(DEFAULT_SIDECAR_RESOURCES).build();

airbyte-workers/src/main/java/io/airbyte/workers/process/KubeProcessFactory.java

@@ -147,6 +147,7 @@ public Process create(final String jobId,
           workerConfigs.getJobSocatImage(),
           workerConfigs.getJobBusyboxImage(),
           workerConfigs.getJobCurlImage(),
+          workerConfigs.getEnvMap(),
           internalToExternalPorts,
           args);
     } catch (final Exception e) {

airbyte-workers/src/main/java/io/airbyte/workers/temporal/sync/OrchestratorConstants.java

@@ -28,6 +28,7 @@ public class OrchestratorConstants {
       EnvConfigs.JOB_MAIN_CONTAINER_CPU_LIMIT,
       EnvConfigs.JOB_MAIN_CONTAINER_MEMORY_REQUEST,
       EnvConfigs.JOB_MAIN_CONTAINER_MEMORY_LIMIT,
+      EnvConfigs.JOB_DEFAULT_ENV_MAP,
       EnvConfigs.LOCAL_ROOT);
 
   public static final String INIT_FILE_ENV_MAP = "envMap.json";

airbyte-workers/src/test-integration/java/io/airbyte/workers/process/KubePodProcessIntegrationTest.java

@@ -7,6 +7,8 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
 
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
@@ -55,6 +57,9 @@ public class KubePodProcessIntegrationTest {
   private static KubernetesClient fabricClient;
   private static KubeProcessFactory processFactory;
   private static final ResourceRequirements DEFAULT_RESOURCE_REQUIREMENTS = new WorkerConfigs(new EnvConfigs()).getResourceRequirements();
+  private static final String ENV_KEY = "ENV_VAR_1";
+  private static final String ENV_VALUE = "ENV_VALUE_1";
+  private static final Map<String, String> ENV_MAP = ImmutableMap.of(ENV_KEY, ENV_VALUE);
 
   private WorkerHeartbeatServer server;
 
@@ -69,8 +74,18 @@ public static void init() throws Exception {
     fabricClient = new DefaultKubernetesClient();
 
     KubePortManagerSingleton.init(new HashSet<>(openPorts.subList(1, openPorts.size() - 1)));
+
+    final WorkerConfigs workerConfigs = spy(new WorkerConfigs(new EnvConfigs()));
+    when(workerConfigs.getEnvMap()).thenReturn(Map.of("ENV_VAR_1", "ENV_VALUE_1"));
+
     processFactory =
-        new KubeProcessFactory(new WorkerConfigs(new EnvConfigs()), "default", fabricClient, heartbeatUrl, getHost(), false,
+        new KubeProcessFactory(
+            workerConfigs,
+            "default",
+            fabricClient,
+            heartbeatUrl,
+            getHost(),
+            false,
             Duration.ofSeconds(1));
   }
 
@@ -193,6 +208,19 @@ public void testSuccessfulSpawningWithQuotes() throws Exception {
     assertEquals(0, process.exitValue());
   }
 
+  @Test
+  public void testEnvMapSet() throws Exception {
+    // start a finite process
+    final Process process = getProcess("echo ENV_VAR_1=$ENV_VAR_1");
+    final var output = new String(process.getInputStream().readAllBytes());
+    assertEquals("ENV_VAR_1=ENV_VALUE_1\n", output);
+    process.waitFor();
+
+    // the pod should be dead and in a good state
+    assertFalse(process.isAlive());
+    assertEquals(0, process.exitValue());
+  }
+
   @Test
   public void testPipeInEntrypoint() throws Exception {
     // start a process that has a pipe in the entrypoint

airbyte-workers/src/test/java/io/airbyte/workers/process/AirbyteIntegrationLauncherTest.java

@@ -57,7 +57,9 @@ void check() throws WorkerException {
     launcher.check(JOB_ROOT, "config", "{}");
 
     Mockito.verify(processFactory).create(JOB_ID, JOB_ATTEMPT, JOB_ROOT, FAKE_IMAGE, false, CONFIG_FILES, null,
-        workerConfigs.getResourceRequirements(), Map.of(KubeProcessFactory.JOB_TYPE, KubeProcessFactory.CHECK_JOB), Map.of(),
+        workerConfigs.getResourceRequirements(),
+        Map.of(KubeProcessFactory.JOB_TYPE, KubeProcessFactory.CHECK_JOB),
+        Map.of(),
         "check",
         "--config", "config");
   }
@@ -67,7 +69,9 @@ void discover() throws WorkerException {
     launcher.discover(JOB_ROOT, "config", "{}");
 
     Mockito.verify(processFactory).create(JOB_ID, JOB_ATTEMPT, JOB_ROOT, FAKE_IMAGE, false, CONFIG_FILES, null,
-        workerConfigs.getResourceRequirements(), Map.of(KubeProcessFactory.JOB_TYPE, KubeProcessFactory.DISCOVER_JOB), Map.of(),
+        workerConfigs.getResourceRequirements(),
+        Map.of(KubeProcessFactory.JOB_TYPE, KubeProcessFactory.DISCOVER_JOB),
+        Map.of(),
         "discover",
         "--config", "config");
   }

airbyte-workers/src/test/java/io/airbyte/workers/process/DockerProcessFactoryTest.java

@@ -7,6 +7,8 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
 
 import com.google.common.collect.ImmutableMap;
 import io.airbyte.commons.io.IOs;
@@ -87,4 +89,50 @@ public void testFileWriting(boolean isOrchestrator) throws IOException, WorkerEx
         Jsons.deserialize(IOs.readFile(jobRoot, "config.json")));
   }
 
+  /**
+   * Tests that the env var map passed in is accessible within the process.
+   */
+  @ParameterizedTest
+  @ValueSource(booleans = {true, false})
+  public void testEnvMapSet(boolean isOrchestrator) throws IOException, WorkerException {
+    final Path workspaceRoot = Files.createTempDirectory(Files.createDirectories(TEST_ROOT), "process_factory");
+    final Path jobRoot = workspaceRoot.resolve("job");
+
+    final WorkerConfigs workerConfigs = spy(new WorkerConfigs(new EnvConfigs()));
+    when(workerConfigs.getEnvMap()).thenReturn(Map.of("ENV_VAR_1", "ENV_VALUE_1"));
+
+    final DockerProcessFactory processFactory =
+        new DockerProcessFactory(
+            workerConfigs,
+            workspaceRoot,
+            "",
+            "",
+            "host",
+            isOrchestrator);
+
+    final Process process = processFactory.create(
+        "job_id",
+        0,
+        jobRoot,
+        "busybox",
+        false,
+        Map.of(),
+        "/bin/sh",
+        workerConfigs.getResourceRequirements(),
+        Map.of(),
+        Map.of(),
+        "-c",
+        "echo ENV_VAR_1=$ENV_VAR_1");
+
+    final StringBuilder out = new StringBuilder();
+    final StringBuilder err = new StringBuilder();
+    LineGobbler.gobble(process.getInputStream(), out::append);
+    LineGobbler.gobble(process.getErrorStream(), err::append);
+
+    WorkerUtils.gentleClose(new WorkerConfigs(new EnvConfigs()), process, 20, TimeUnit.SECONDS);
+
+    assertEquals(0, process.exitValue(), String.format("Process failed with stdout: %s and stderr: %s", out, err));
+    assertEquals("ENV_VAR_1=ENV_VALUE_1", out.toString(), String.format("Output did not contain the expected string. stdout: %s", out));
+  }
+
 }