Allow setting request+lmit for cpu and memory resources

Author: dln

README.md

@@ -177,6 +177,22 @@ Should be used with some care, since the actual storage used is outside the cont
 
 Example: `/var/lib/buildkite/builds`
 
+### `resources-request-cpu` (optional, string)
+
+Sets [cpu request](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/) for the build container.
+
+### `resources-limit-cpu` (optional, string)
+
+Sets [cpu limit](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/) for the build container.
+
+### `resources-request-memory` (optional, string)
+
+Sets [memory request](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/) for the build container.
+
+### `resources-limit-memory` (optional, string)
+
+Sets [memory limit](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/) for the build container.
+
 ### `workdir` (optional, string)
 
 Override the working directory to run the command in, inside the container. The default is the build directory where the buildkite bootstrap and git checkout runs.

lib/job.jsonnet

@@ -52,6 +52,10 @@ function(jobName, agentEnv={}, stepEnvFile='', patchFunc=identity) patchFunc({
     BUILDKITE_PLUGIN_K8S_MOUNT_SECRET: '',
     BUILDKITE_PLUGIN_K8S_MOUNT_BUILDKITE_AGENT: 'true',
     BUILDKITE_PLUGIN_K8S_PRIVILEGED: 'false',
+    BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_CPU: '',
+    BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_CPU: '',
+    BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_MEMORY: '',
+    BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_MEMORY: '',
     BUILDKITE_PLUGIN_K8S_WORKDIR: std.join('/', [env.BUILDKITE_BUILD_PATH, buildSubPath]),
   } + agentEnv,
 
@@ -276,6 +280,24 @@ function(jobName, agentEnv={}, stepEnvFile='', patchFunc=identity) patchFunc({
             securityContext: {
               privileged: std.asciiLower(env.BUILDKITE_PLUGIN_K8S_PRIVILEGED) == 'true',
             },
+            resources: {
+              requests:
+                (if env.BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_CPU != '' then
+                   { cpu: env.BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_CPU }
+                 else {})
+                +
+                (if env.BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_MEMORY != '' then
+                   { memory: env.BUILDKITE_PLUGIN_K8S_RESOURCES_REQUEST_MEMORY }
+                 else {}),
+              limits:
+                (if env.BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_CPU != '' then
+                   { cpu: env.BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_CPU }
+                 else {})
+                +
+                (if env.BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_MEMORY != '' then
+                   { memory: env.BUILDKITE_PLUGIN_K8S_RESOURCES_LIMIT_MEMORY }
+                 else {}),
+            },
             volumeMounts: [
               { mountPath: env.BUILDKITE_PLUGIN_K8S_WORKDIR, name: 'build', subPath: buildSubPath },
               { mountPath: '/build', name: 'build', subPath: buildSubPath },

plugin.yml

@@ -49,6 +49,14 @@ configuration:
       type: string
     patch:
       type: string
+    resources-request-cpu:
+      type: string
+    resources-limit-cpu:
+      type: string
+    resources-request-memory:
+      type: string
+    resources-limit-memory:
+      type: string
   required:
   - image
   additionalProperties: false