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fix: resolve MCP sidecar image failures (issue #40)

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Three fixes for broken MCP sidecars:

1. Remove GitHub MCP sidecar entirely - the upstream image
   (ghcr.io/modelcontextprotocol/servers/github) is discontinued.
   GitHub MCP is now accessed via Copilot API instead.

2. Fix Playwright MCP image - changed from non-existent
   microsoft/playwright-mcp to mcr.microsoft.com/playwright/mcp
   (the official Microsoft Container Registry image).

3. Fix pgtuner MCP startup command - changed --transport to --mode
   and added --host 0.0.0.0 to match the current pgtuner_mcp CLI.

Bumps chart version to 0.3.3.

Closes #40

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
This commit is contained in:
DevContainer User
2026-02-22 19:30:56 +00:00
parent b9c30b8e4d
commit 71c6ca70cc
6 changed files with 31 additions and 86 deletions
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README.md
+5 -5
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@@ -50,7 +50,7 @@ The secret is picked up automatically via `envFrom`. Keys recognised:
| `SSH_AUTHORIZED_KEYS` | Public key(s) for SSH access (required when `ssh: true`) |
| `HOMEASSISTANT_URL` | Home Assistant URL (required when `mcpSidecars.homeassistant.enabled: true`) |
| `HOMEASSISTANT_TOKEN` | Home Assistant long-lived access token (required when `mcpSidecars.homeassistant.enabled: true`) |
| `DATABASE_URI` | PostgreSQL connection string (required when `mcpSidecars.pgtuner.enabled: true`) |
| `DATABASE_URI` | PostgreSQL connection string (required when `mcp.sidecars.pgtuner.enabled: true`) |
| `PGTUNER_EXCLUDE_USERIDS` | Comma-separated PostgreSQL user OIDs to exclude from monitoring (optional) |
```bash
@@ -200,16 +200,16 @@ The devcontainer includes MCP (Model Context Protocol) servers as sidecar contai
|---------|---------|---------|
| `mcp.sidecars.kubernetes.enabled` | `true` | Kubernetes API access via MCP |
| `mcp.sidecars.flux.enabled` | `true` | Flux GitOps operations via MCP |
| `mcp.sidecars.github.enabled` | `false` | GitHub API access via MCP (DISABLED: archived image) |
| `mcp.sidecars.homeassistant.enabled` | `false` | Home Assistant smart home control via MCP |
| `mcp.sidecars.pgtuner.enabled` | `false` | PostgreSQL performance tuning and analysis via MCP |
| `mcp.sidecars.playwright.enabled` | `true` | Browser automation and web testing via MCP |
**Notes:**
- GitHub MCP is accessed via the Copilot API (`https://api.githubcopilot.com/mcp/`), not as a sidecar
- Kubernetes and Flux sidecars require `clusterAccess` != `none` to be deployed (automatically disabled when no cluster access)
- Kubernetes and Flux sidecars inherit the pod's ServiceAccount RBAC permissions (controlled by `clusterAccess`)
- Home Assistant sidecar requires `homeassistant-url` and `homeassistant-token` in the env secret
- PostgreSQL tuner sidecar requires `database-uri` in the env secret (PostgreSQL connection string)
- Home Assistant sidecar requires `HOMEASSISTANT_URL` and `HOMEASSISTANT_TOKEN` in the env secret
- PostgreSQL tuner sidecar requires `DATABASE_URI` in the env secret (PostgreSQL connection string)
- Playwright sidecar provides browser automation and web testing capabilities
**Disable MCP sidecars:**
@@ -309,7 +309,7 @@ mcp:
playwright:
enabled: true
image:
repository: microsoft/playwright-mcp
repository: mcr.microsoft.com/playwright/mcp
tag: latest
port: 8086
resources: