9a5973d366
- Add `keep_alive` parameter to `container_start` - Implement logic to restart containers with `tail -f /dev/null` after successful entrypoint exit - Update `podman_pull_and_export` to also extract image metadata - Enhance `create_crun_config` to use extracted image metadata (ENTRYPOINT, CMD, ENV) - Refactor test suite to use `keep_alive: true` for Alpine containers
76 lines
2.5 KiB
Plaintext
76 lines
2.5 KiB
Plaintext
#!/usr/bin/env hero
|
|
|
|
// ============================================================================
|
|
// HeroPods Keep-Alive Feature Test - Alpine Container
|
|
// ============================================================================
|
|
//
|
|
// This script demonstrates the keep_alive feature with an Alpine container.
|
|
//
|
|
// Test Scenario:
|
|
// Alpine's default CMD is /bin/sh, which exits immediately when run
|
|
// non-interactively (no stdin). This makes it perfect for testing keep_alive:
|
|
//
|
|
// 1. Container starts with CMD=["/bin/sh"]
|
|
// 2. /bin/sh exits immediately (exit code 0)
|
|
// 3. HeroPods detects the successful exit
|
|
// 4. HeroPods recreates the container with keep-alive command
|
|
// 5. Container remains running and accepts exec commands
|
|
//
|
|
// This demonstrates the core keep_alive functionality:
|
|
// - Detecting when a container's entrypoint/cmd exits
|
|
// - Checking the exit code
|
|
// - Injecting a keep-alive process on successful exit
|
|
// - Allowing subsequent exec commands
|
|
//
|
|
// ============================================================================
|
|
|
|
// Step 1: Configure HeroPods instance
|
|
!!heropods.configure
|
|
name:'hello_world'
|
|
reset:true
|
|
use_podman:true
|
|
|
|
// Step 2: Create a container with Alpine 3.20 image
|
|
// Using custom image type to automatically download from Docker Hub
|
|
!!heropods.container_new
|
|
name:'alpine_test_keepalive'
|
|
image:'custom'
|
|
custom_image_name:'alpine_test'
|
|
docker_url:'docker.io/library/alpine:3.20'
|
|
|
|
// Step 3: Start the container with keep_alive enabled
|
|
// Alpine's CMD is /bin/sh which exits immediately when run non-interactively.
|
|
// With keep_alive:true, HeroPods will:
|
|
// 1. Start the container with /bin/sh
|
|
// 2. Wait for /bin/sh to exit (which happens immediately)
|
|
// 3. Detect the successful exit (exit code 0)
|
|
// 4. Recreate the container with a keep-alive command (tail -f /dev/null)
|
|
// 5. The container will then remain running and accept exec commands
|
|
!!heropods.container_start
|
|
name:'alpine_test_keepalive'
|
|
keep_alive:true
|
|
|
|
// Step 4: Execute a simple hello world command
|
|
!!heropods.container_exec
|
|
name:'alpine_test_keepalive'
|
|
cmd:'echo Hello World from HeroPods'
|
|
stdout:true
|
|
|
|
// Step 5: Display OS information
|
|
!!heropods.container_exec
|
|
name:'alpine_test_keepalive'
|
|
cmd:'cat /etc/os-release'
|
|
stdout:true
|
|
|
|
// Step 6: Show running processes
|
|
!!heropods.container_exec
|
|
name:'alpine_test_keepalive'
|
|
cmd:'ps aux'
|
|
stdout:true
|
|
|
|
// Step 7: Verify Alpine version
|
|
!!heropods.container_exec
|
|
name:'alpine_test_keepalive'
|
|
cmd:'cat /etc/alpine-release'
|
|
stdout:true
|