Fix working directory and write state for appPod to be used in run-script-step (#8)

* added initial entrypoint script

* change workingg directory working with addition to fix prepare-job state output

* added prepend path

* added run-script-step file generation, removed prepend path from container-step and prepare job

* latest changes with testing run script step

* fix the mounts real fast

* cleanup

* fix tests

* add kind test

* add kind yaml to ignore and run it during ci

* fix kind option

* remove gitignore

* lowercase pwd

* checkout first!

* ignore test file in build.yaml

* fixed wrong working directory and added test to run script step testing for the env

* handle env's/escaping better

* added single quote escape to env escapes

* surounded env value with single quote

* added spacing around run-container-step, changed examples to actually echo hello world

* refactored tests

* make sure to escape properly

* set addition mounts for container steps

* fixup container action mounts

Co-authored-by: Thomas Boop <thboop@github.com>
Co-authored-by: Thomas Boop <52323235+thboop@users.noreply.github.com>

packages/k8s/src/hooks/run-script-step.ts

@@ -1,38 +1,35 @@
 /* eslint-disable @typescript-eslint/no-unused-vars */
+import * as fs from 'fs'
 import { RunScriptStepArgs } from 'hooklib'
 import { execPodStep } from '../k8s'
-import { getJobPodName, JOB_CONTAINER_NAME } from './constants'
+import { writeEntryPointScript } from '../k8s/utils'
+import { JOB_CONTAINER_NAME } from './constants'
 
 export async function runScriptStep(
   args: RunScriptStepArgs,
   state,
   responseFile
 ): Promise<void> {
-  const cb = new CommandsBuilder(
-    args.entryPoint,
-    args.entryPointArgs,
-    args.environmentVariables
+  const { entryPoint, entryPointArgs, environmentVariables } = args
+  const { containerPath, runnerPath } = writeEntryPointScript(
+    args.workingDirectory,
+    entryPoint,
+    entryPointArgs,
+    args.prependPath,
+    environmentVariables
   )
-  await execPodStep(cb.command, getJobPodName(), JOB_CONTAINER_NAME)
-}
 
-class CommandsBuilder {
-  constructor(
-    private entryPoint: string,
-    private entryPointArgs: string[],
-    private environmentVariables: { [key: string]: string }
-  ) {}
-
-  get command(): string[] {
-    const envCommands: string[] = []
-    if (
-      this.environmentVariables &&
-      Object.entries(this.environmentVariables).length
-    ) {
-      for (const [key, value] of Object.entries(this.environmentVariables)) {
-        envCommands.push(`${key}=${value}`)
-      }
-    }
-    return ['env', ...envCommands, this.entryPoint, ...this.entryPointArgs]
+  args.entryPoint = 'sh'
+  args.entryPointArgs = ['-e', containerPath]
+  try {
+    await execPodStep(
+      [args.entryPoint, ...args.entryPointArgs],
+      state.jobPod,
+      JOB_CONTAINER_NAME
+    )
+  } catch (err) {
+    throw new Error(`failed to run script step: ${JSON.stringify(err)}`)
+  } finally {
+    fs.rmSync(runnerPath)
   }
 }