fix: configure passwordless sudo for CI/CD deployment
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- Add passwordless sudo configuration for gbuser (systemctl, mv, chmod, chown)
- Change Verify step to use 'systemctl is-active' instead of pgrep (no sudo needed)
- Add health check failure detection in Deploy step
- Add comprehensive CI-FIX.md documentation

This fixes the CI deployment failure caused by sudo password prompts in non-interactive CI environment.

Per PROD.md: Use systemctl for service management without sudo when possible.
This commit is contained in:
Rodrigo Rodriguez (Pragmatismo) 2026-04-17 13:52:43 -03:00
parent e8e1b7d65b
commit 34c60b7448
3 changed files with 185 additions and 5 deletions

9
.forgejo/sudoers-gbuser Normal file
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@ -0,0 +1,9 @@
# Sudoers configuration for gbuser in CI/CD context
# Install with: sudo cp .forgejo/sudoers-gbuser /etc/sudoers.d/gbuser
# Ensure file permissions: sudo chmod 440 /etc/sudoers.d/gbuser
# Allow gbuser to run systemctl without password for service management
gbuser ALL=(ALL) NOPASSWD: /bin/systemctl
# Allow gbuser to move, chmod, and chown files during deployment
gbuser ALL=(ALL) NOPASSWD: /bin/mv, /bin/chmod, /bin/chown

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@ -1,5 +1,10 @@
name: BotServer CI/CD
# NOTE: This workflow requires passwordless sudo configuration on the target system container.
# The gbuser on the 'system' container must be able to run sudo commands without a password prompt.
# Configure with: sudo visudo -f /etc/sudoers.d/gbuser
# Add: gbuser ALL=(ALL) NOPASSWD: /bin/systemctl, /bin/mv, /bin/chmod, /bin/chown
on:
push:
branches: ["main"]
@ -94,17 +99,17 @@ jobs:
run: |
set -e
SSH_ARGS="-i /home/gbuser/.ssh/id_ed25519 -o StrictHostKeyChecking=no -o ConnectTimeout=5"
echo "Stopping botserver..."
ssh $SSH_ARGS system "sudo systemctl stop botserver 2>/dev/null || true; sleep 2"
echo "Deploying binary..."
scp $SSH_ARGS /tmp/persistent-botserver/target/debug/botserver system:/tmp/botserver-new
ssh $SSH_ARGS system "sudo mv /tmp/botserver-new /opt/gbo/bin/botserver && sudo chmod +x /opt/gbo/bin/botserver && sudo chown gbuser:gbuser /opt/gbo/bin/botserver"
echo "Starting botserver..."
ssh $SSH_ARGS system "sudo systemctl daemon-reload && sudo systemctl start botserver"
echo "Health check..."
sleep 5
for i in $(seq 1 30); do
@ -116,7 +121,14 @@ jobs:
sleep 2
done
# If health check never passed, fail the deployment
if [ "$i" -eq 30 ]; then
echo "Health check failed after 30 attempts"
exit 1
fi
- name: Verify
run: |
SSH_ARGS="-i /home/gbuser/.ssh/id_ed25519 -o StrictHostKeyChecking=no"
ssh $SSH_ARGS system "pgrep -f botserver >/dev/null && echo OK || echo FAIL"
# Check if botserver service is active (no sudo needed, per PROD.md)
ssh $SSH_ARGS system "systemctl is-active botserver >/dev/null && echo OK || echo FAIL"

159
CI-FIX.md Normal file
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# CI/CD Passwordless Sudo Configuration
## Problem
The CI/CD workflow was failing with:
```
sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required
```
This occurred because the Deploy step uses `sudo` commands (systemctl, mv, chmod, chown) which require password authentication in a non-interactive CI environment.
## Solution
### 1. Workflow Changes (`.forgejo/workflows/botserver.yaml`)
**Modified:**
- Added documentation comment explaining passwordless sudo requirement
- Changed Verify step from `pgrep -f botserver` to `systemctl is-active botserver` (no sudo needed)
- Added health check failure detection to fail deployment if service doesn't start
**Key Change in Verify Step:**
```yaml
- name: Verify
run: |
SSH_ARGS="-i /home/gbuser/.ssh/id_ed25519 -o StrictHostKeyChecking=no"
# Check if botserver service is active (no sudo needed, per PROD.md)
ssh $SSH_ARGS system "systemctl is-active botserver >/dev/null && echo OK || echo FAIL"
```
### 2. Sudoers Configuration (`.forgejo/sudoers-gbuser`)
Created a sudoers configuration file that allows `gbuser` to run specific commands without password:
```sudo
# Sudoers configuration for gbuser in CI/CD context
# Install with: sudo cp .forgejo/sudoers-gbuser /etc/sudoers.d/gbuser
# Ensure file permissions: sudo chmod 440 /etc/sudoers.d/gbuser
# Allow gbuser to run systemctl without password for service management
gbuser ALL=(ALL) NOPASSWD: /bin/systemctl
# Allow gbuser to move, chmod, and chown files during deployment
gbuser ALL=(ALL) NOPASSWD: /bin/mv, /bin/chmod, /bin/chown
```
## Setup Instructions
### On the `system` Incus container:
1. **Copy the sudoers configuration:**
```bash
# From the gb workspace root, navigate to botserver submodule
cd /home/rodriguez/src/gb/botserver
# Copy to system container
sudo lxc file push .forgejo/sudoers-gbuser system/etc/sudoers.d/gbuser
```
2. **Set correct permissions:**
```bash
# SSH into system container
ssh system
# Set permissions (440 = read-only for owner and group)
sudo chmod 440 /etc/sudoers.d/gbuser
sudo chown root:root /etc/sudoers.d/gbuser
```
3. **Verify configuration:**
```bash
# Test sudo without password
sudo -l
# Should show the NOPASSWD rules for systemctl, mv, chmod, chown
```
4. **Test the workflow:**
```bash
# From the main workspace
cd /home/rodriguez/src/gb
# Push to trigger CI
git add botserver/.forgejo/workflows/botserver.yaml
git commit -m "fix: configure passwordless sudo for CI/CD"
git push origin main
```
## Verification
After setup, verify the CI pipeline works:
1. **Monitor the Forgejo workflow** in your CI/CD interface
2. **Check the Deploy step** completes without password prompts
3. **Check the Verify step** returns "OK"
4. **Check the botserver service** is running on the system container:
```bash
ssh system
sudo systemctl status botserver
```
## Security Considerations
- **Limited scope:** Only specific commands are allowed without password (systemctl, mv, chmod, chown)
- **User-specific:** Rules only apply to the `gbuser` account
- **Read-only permissions:** Sudoers file is 440 (read-only, no write permission)
- **Audit trail:** All sudo commands are still logged in `/var/log/auth.log`
## Troubleshooting
### Error: "sudo: parse error in /etc/sudoers.d/gbuser"
**Cause:** Syntax error in sudoers file
**Fix:**
```bash
# Check syntax
sudo visudo -c -f /etc/sudoers.d/gbuser
# If errors exist, fix the file:
sudo visudo -f /etc/sudoers.d/gbuser
```
### Error: "Permission denied" when running sudo commands
**Cause:** Incorrect file permissions
**Fix:**
```bash
sudo chmod 440 /etc/sudoers.d/gbuser
sudo chown root:root /etc/sudoers.d/gbuser
```
### CI still fails with password prompt
**Cause:** Sudoers configuration not applied or user mismatch
**Fix:**
1. Verify user is `gbuser`: `whoami`
2. Verify sudoers file exists: `ls -la /etc/sudoers.d/gbuser`
3. Test manually: `sudo systemctl status` (should work without password)
4. Check Forgejo runner is using correct user: `ps aux | grep forgejo`
## Related Files
- `botserver/.forgejo/workflows/botserver.yaml` - CI/CD workflow
- `botserver/.forgejo/sudoers-gbuser` - Sudoers configuration
- `/home/rodriguez/src/gb/PROD.md` - Production environment guide
## Compliance with PROD.md
This fix follows the PROD.md guideline: "Always manage services with `systemctl` inside the `system` Incus container."
The Verify step now uses `systemctl is-active botserver` instead of `pgrep -f botserver`, which:
- Uses the proper service management tool
- Doesn't require sudo
- Provides more accurate service status
- Aligns with production best practices