forked from lxcafe/lxcafe
61 lines
1.9 KiB
Markdown
61 lines
1.9 KiB
Markdown
# Post-Installation Script Testing
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This directory contains everything needed to test the post-installation script in a safe, isolated container environment.
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## Contents
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- `Dockerfile` - Container image definition for testing
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- `01_create_image.sh` - script for creating container image locally
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- `02_start_container_with_image.sh` - script for starting container from created image
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## Purpose
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Provides a reproducible testing environment that allows:
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- Running the post-installation script without affecting the host system
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- Simulating `apt` installations (safe, no real package changes)
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- Testing script logic, prompts, and error handling
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- Validating syntax and tracing execution
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## Features
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The Dockerfile includes:
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- Ubuntu 22.04 base image
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- Simulated `sudo` wrapper that runs `apt-get -s install` (simulates installs without making changes)
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- Useful utilities: `bash`, `wget`, `tar`, `curl`, `gnupg`, `ca-certificates`, `file`, `procps`
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## Usage
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### Build the test image
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Run the prepared shell script to build the image
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```bash
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cd post_installation_script_test
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sh 01_create_image.sh
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```
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### Start a container for testing
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Run the prepared shell script start a new container for testing based in the
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image and remove container after it is stopped. After container is started an interactive session is started into the container.
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```bash
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cd post_installation_script_test
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sh 02_start_container_with_image.sh
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```
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### Test the script file in the running container
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After container is started an interactive session was started in the container and the script can be started for testing
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```bash
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sh script.sh
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```
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## Security Notes
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- The script is mounted read-only (`:ro` flag) to prevent container from modifying host files
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- Container runs with reduced privileges (`--cap-drop ALL --security-opt no-new-privileges`)
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- The `sudo` wrapper simulates apt operations, so no packages are actually installed
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- Use `--tmpfs /tmp:rw` for any temporary writes inside the container
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