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fix ansible issues #99

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fix ansible issues #99

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eriktaubeneck
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@eriktaubeneck eriktaubeneck commented Dec 7, 2024

this fixes two small errors with the deploy script:

  1. ignore_errors allows the draft process to restart even if one of the nodes isn't running (e.g., has crashed)
  2. clone: false fixes a change to the github api so that it only pulls main, and doesn't try to clone the repo (which fails, due to the repo already being there)

Summary by CodeRabbit

  • New Features

    • Enhanced Ansible playbook to improve error handling and repository updates.
  • Bug Fixes

    • Updated task for stopping the helper sidecar to allow execution to continue despite failures.
  • Chores

    • Adjusted parameters for pulling new commits from GitHub to prevent unnecessary cloning of the repository.

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coderabbitai bot commented Dec 7, 2024

Walkthrough

The changes in the pull request modify the Ansible playbook located in sidecar/ansible/deploy.yaml. Key updates include the addition of the ignore_errors: true directive in the task for stopping the helper sidecar, allowing the playbook to proceed even if this task fails. Additionally, the task that pulls new commits from GitHub has been adjusted to set the clone parameter to false, preventing cloning if the repository does not exist, while maintaining the update parameter set to yes to ensure updates to existing repositories.

Changes

File Path Change Summary
sidecar/ansible/deploy.yaml - Added ignore_errors: true to the task for stopping the helper sidecar.
- Set clone: false and update: yes in the task that pulls new commits from GitHub.

Possibly related PRs

  • update ansible git to only clone when repo isn't there #95: The changes in this PR also modify the behavior of the Ansible Git module to ensure that cloning occurs only when the repository does not already exist, which is directly related to the changes made in the main PR regarding the clone parameter in the Ansible playbook.

Suggested reviewers

  • cberkhoff
  • akoshelev

🐇 In the meadow, where bunnies play,
A change was made to brighten the day.
With errors ignored, the tasks flow free,
Pulling updates with glee, oh so carefree!
Ansible dances, sidecars align,
Hopping along, everything's fine! 🌼


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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
sidecar/ansible/deploy.yaml (1)

17-18: LGTM: Correct configuration for Git module

The addition of clone: false while maintaining update: yes is the right approach to handle the GitHub API changes. This ensures that:

  1. The playbook only updates existing repositories
  2. Fails early if repository is missing (fail-fast principle)

Consider adding a pre-flight check task that verifies the repository exists before running the deployment. This would provide clearer error messages and could suggest recovery steps if the repository is missing.

Example task structure:

- name: Verify draft repository exists
  stat:
    path: "{{ ansible_env.HOME }}/draft/.git"
  register: repo_check
  failed_when: not repo_check.stat.exists
  fail_msg: "Draft repository not found. Please ensure it is manually cloned first."
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 58fdfa6 and 8d20a9b.

📒 Files selected for processing (1)
  • sidecar/ansible/deploy.yaml (1 hunks)
🔇 Additional comments (1)
sidecar/ansible/deploy.yaml (1)

11-11: LGTM: Appropriate use of ignore_errors

The addition of ignore_errors: true aligns with the PR objective to handle scenarios where a node might be down. This is a reasonable approach since:

  1. The helper sidecar might not be running if the node crashed
  2. The subsequent task will start a fresh instance regardless

Let's verify there are no critical errors being masked:

✅ Verification successful

ignore_errors is safe and appropriate here

The implementation confirms this is a safe use of ignore_errors. The stop operation:

  1. Simply attempts to read a PID file and terminate the process
  2. Already handles the case where the process doesn't exist (returns False if PID file missing)
  3. Is followed by a clean start of the helper sidecar with proper configuration

The error handling won't mask any critical issues since the stop operation is designed to be idempotent and gracefully handles missing processes.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for error handling or critical sections in the draft stop-helper-sidecar command
rg -A 5 "stop-helper-sidecar" $(fd -t f -e py -e sh)

Length of output: 857


Script:

#!/bin/bash
# Let's try a different approach to find the stop helper sidecar implementation
# First, let's check the ansible playbook content
cat sidecar/ansible/deploy.yaml

# Then search for any stop-related implementations in Python files
rg -A 5 "def.*stop" sidecar/

Length of output: 1885

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