make static images configurable

Author: nicktrn

apps/kubernetes-provider/src/index.ts

@@ -37,8 +37,11 @@ const UPTIME_MAX_PENDING_ERRORS = Number(process.env.UPTIME_MAX_PENDING_ERRORS |
 const POD_EPHEMERAL_STORAGE_SIZE_LIMIT = process.env.POD_EPHEMERAL_STORAGE_SIZE_LIMIT || "10Gi";
 const POD_EPHEMERAL_STORAGE_SIZE_REQUEST = process.env.POD_EPHEMERAL_STORAGE_SIZE_REQUEST || "2Gi";
 
+// Image config
 const PRE_PULL_DISABLED = process.env.PRE_PULL_DISABLED === "true";
 const ADDITIONAL_PULL_SECRETS = process.env.ADDITIONAL_PULL_SECRETS;
+const PAUSE_IMAGE = process.env.PAUSE_IMAGE || "registry.k8s.io/pause:3.9";
+const BUSYBOX_IMAGE = process.env.BUSYBOX_IMAGE || "registry.digitalocean.com/trigger/busybox";
 
 const logger = new SimpleLogger(`[${NODE_NAME}]`);
 logger.log(`running in ${RUNTIME_ENV} mode`);
@@ -237,7 +240,7 @@ class KubernetesTaskOperations implements TaskOperations {
             },
             {
               name: "populate-taskinfo",
-              image: "registry.digitalocean.com/trigger/busybox",
+              image: BUSYBOX_IMAGE,
               imagePullPolicy: "IfNotPresent",
               command: ["/bin/sh", "-c"],
               args: ["printenv COORDINATOR_HOST | tee /etc/taskinfo/coordinator-host"],
@@ -373,7 +376,7 @@ class KubernetesTaskOperations implements TaskOperations {
               containers: [
                 {
                   name: "pause",
-                  image: "registry.k8s.io/pause:3.9",
+                  image: PAUSE_IMAGE,
                   resources: {
                     limits: {
                       cpu: "1m",