refactor: normalises samples config names (#348)

Uses the same pattern as it is being done in the bigquery kokoro config
files: java<version>-samples.cfg.

.kokoro/continuous/java11-samples.cfg

@@ -0,0 +1,32 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples"
+}
+
+env_vars: {
+    key: "GCLOUD_PROJECT"
+    value: "gcloud-devel"
+}
+
+env_vars: {
+    key: "GOOGLE_APPLICATION_CREDENTIALS"
+    value: "keystore/73713_java_it_service_account"
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "java_it_service_account"
+    }
+  }
+}
+

.kokoro/continuous/samples/common.cfg → .kokoro/continuous/java8-samples.cfg

@@ -1,5 +1,11 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
 env_vars: {
   key: "JOB_TYPE"
   value: "samples"
@@ -23,3 +29,4 @@ before_action {
     }
   }
 }
+

.kokoro/nightly/java11-samples.cfg

@@ -0,0 +1,39 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "ENABLE_BUILD_COP"
+  value: "true"
+}
+

.kokoro/nightly/java8-samples.cfg

@@ -0,0 +1,39 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "java-docs-samples-testing"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-docs-samples-service-account"
+}
+
+env_vars: {
+  key: "ENABLE_BUILD_COP"
+  value: "true"
+}
+

.kokoro/presubmit/samples/common.cfg → .kokoro/presubmit/java11-samples.cfg

@@ -1,5 +1,11 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
+
 env_vars: {
   key: "JOB_TYPE"
   value: "samples"
@@ -25,3 +31,4 @@ env_vars: {
   key: "SECRET_MANAGER_KEYS"
   value: "java-docs-samples-service-account"
 }
+

.kokoro/nightly/samples/common.cfg → .kokoro/presubmit/java8-samples.cfg

@@ -1,5 +1,11 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java8"
+}
+
 env_vars: {
   key: "JOB_TYPE"
   value: "samples"
@@ -26,7 +32,3 @@ env_vars: {
   value: "java-docs-samples-service-account"
 }
 
-env_vars: {
-  key: "ENABLE_BUILD_COP"
-  value: "true"
-}