add deployment and observability scaffold by devin-ai-integration[bot] · Pull Request #1 · useblacksmith/smart-git-proxy

devin-ai-integration · 2026-06-16T22:01:32Z

Summary

Scaffolds the deployment and observability infrastructure for the git mirror proxy cluster (7 nodes: 3 USW, 2 EUW, 2 EUC), modeled after storage-agent's Ansible/Grafana setup.

ansible/ — Deployment automation:

setup.yaml: One-time node setup (systemd unit, NVMe mirror dir, env config, Vector→Axiom logging)
roll.yaml: Rolling deploy with serial: 1 — build from branch or download release binary, restart, health-check before moving to next node
Per-region inventory files with placeholder IPs (fill after provisioning)
templates/: systemd unit (SIGTERM graceful shutdown, EnvironmentFile), env config (MIRROR_DIR, MIRROR_MAX_SIZE=80%, SYNC_STALE_AFTER=2s, AUTH_MODE=pass-through), Vector config (journald → Axiom smart-git-proxy dataset)

grafana/ — Monitoring:

Dashboard with 10 panels across 4 sections: clone rate, cache hit rate, clone latency (p50/p95/p99), upstream fetch rate, mirror count, NVMe usage (gauge + timeseries), top repos by request rate, upstream fetch errors, LRU evictions
Alert rules: node down, NVMe >80%/>95%, upstream fetch errors, p95 clone latency >30s, high eviction rate

Related: design doc PR

Link to Devin session: https://app.devin.ai/sessions/9193bf03dfa14cf684447384ef17a8db

^{Need help on this PR? Tag /codesmith with what you need. Autofix is disabled.}

^{Need help on this PR? Tag /codesmith with what you need. Autofix is disabled. (Staging)}

ansible/: systemd unit, env config, rolling deploy playbook, Vector→Axiom log forwarding, per-region inventory files (3 USW, 2 EUW, 2 EUC, staging) grafana/: dashboard with clone rate, cache hit rate, latency, upstream fetches, NVMe usage, per-repo traffic, errors. Alert rules for node health, NVMe usage, upstream errors, clone latency, eviction rate. Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

devin-ai-integration · 2026-06-16T22:01:34Z

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- grafana: align metric names with internal/metrics/metrics.go (requests_total, request_seconds, sync_total, errors_total, responses_total) instead of invented names - ansible/setup: fail explicitly when /mnt/nvme is missing instead of silently skipping mirror directory creation - ansible/roll: download goreleaser tar.gz archive and extract, matching the actual release asset naming convention Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

devin-ai-integration

Devin Review found 5 potential issues.

devin-ai-integration · 2026-06-16T22:05:59Z

+      shell: |
+        set -euo pipefail
+        export PATH=/usr/local/go/bin:$PATH
+        cd /tmp/smart-git-proxy-build
+        make build
+      args:
+        executable: /bin/bash
+      when: branch != ""


🔴 make build fails on remote servers because mise is not installed

The Makefile defines GO ?= mise exec -- go (Makefile:1), which only uses the environment's GO if it's already set. The Ansible build step (roll.yaml:48-54) exports PATH=/usr/local/go/bin:$PATH but never sets GO=go, so make build expands to mise exec -- go build .... Since mise is not installed on remote deployment targets, the build will always fail with a command-not-found error.

Suggested change

shell: |

set -euo pipefail

export PATH=/usr/local/go/bin:$PATH

cd /tmp/smart-git-proxy-build

make build

args:

executable: /bin/bash

when: branch != ""

- name: Build from branch

shell: |

set -euo pipefail

export PATH=/usr/local/go/bin:$PATH

export GO=go

cd /tmp/smart-git-proxy-build

make build

args:

executable: /bin/bash

when: branch != ""

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Fixed in aa31b37. Added export GO=go before make build so it bypasses the mise exec -- go default in the Makefile.

devin-ai-integration · 2026-06-16T22:06:00Z

+      shell: |
+        set -euo pipefail
+        mkdir -p /tmp/smart-git-proxy-release
+        tar -xzf /tmp/smart-git-proxy-release.tar.gz -C /tmp/smart-git-proxy-release
+        install -m 0755 /tmp/smart-git-proxy-release/smart-git-proxy /usr/local/bin/smart-git-proxy


🔴 Service unconditionally restarted even when no new binary is deployed

The "Restart smart-git-proxy" task at lines 81-85 has no when condition. If roll.yaml is invoked without -e branch=... or -e release_tag=..., both variables default to "", all binary-install steps are skipped, but the service is still restarted — causing unnecessary downtime on production nodes during a rolling deploy (serial: 1).

Suggested change

shell: |

set -euo pipefail

mkdir -p /tmp/smart-git-proxy-release

tar -xzf /tmp/smart-git-proxy-release.tar.gz -C /tmp/smart-git-proxy-release

install -m 0755 /tmp/smart-git-proxy-release/smart-git-proxy /usr/local/bin/smart-git-proxy

- name: Restart smart-git-proxy

systemd:

name: smart-git-proxy

state: restarted

enabled: yes

when: branch != "" or release_tag != ""

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Fixed in aa31b37. Rather than a conditional when, the playbook now fails early if neither branch nor release_tag is provided — since running roll.yaml without deploying anything is always a mistake.

devin-ai-integration · 2026-06-16T22:06:01Z

+# Encrypted with ansible-vault.
+# Contains: github_token, axiom_token
+# To edit: ansible-vault edit secrets.yml


🚩 secrets.yml is a plaintext placeholder committed to the repo

The ansible/secrets.yml file is committed as a plaintext comment-only placeholder. While it currently contains no actual secrets (just comments explaining what should go there), the intent per ansible/README.md:58-60 is for this to be an ansible-vault encrypted file. Having a plaintext placeholder in the repo means someone could accidentally add real secrets to it without encrypting first. Consider adding it to .gitignore or committing an actually-encrypted empty vault file instead.

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Fair point. This is intentionally a placeholder — the file needs to be replaced with an actual ansible-vault encrypted file before first use. Adding to .gitignore would mean operators need to create it from scratch without a template. The README documents the expected contents and ansible-vault edit workflow. Happy to add a .gitignore entry if preferred.

devin-ai-integration · 2026-06-16T22:06:03Z

+      "id": 2,
+      "targets": [
+        {
+          "expr": "sum(rate(smart_git_proxy_requests_total{instance=~\"$instance\"}[$__rate_interval])) by (kind)",


🚩 Grafana dashboard JSON has a truncated PromQL expression

At line 57 of the dashboard JSON, the Cache Hit Rate panel's expr field is truncated: it ends with *... followed by [truncated]. This appears to be a diff rendering artifact — if the actual file on disk is also truncated, the dashboard import will fail or show a broken panel. Worth verifying the actual file content.

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This is a diff rendering artifact — the actual file on disk is not truncated. The panel no longer exists in the latest commit anyway (replaced with "Requests by Kind" which uses the real smart_git_proxy_requests_total metric).

devin-ai-integration · 2026-06-16T22:06:04Z

+    type: axiom
+    inputs:
+      - add_metadata
+    token: "{{ axiom_token }}"


🚩 Vector config template exposes axiom_token in plaintext on disk

The Vector config at ansible/templates/vector.yaml.j2:33 renders {{ axiom_token }} directly into /etc/vector/vector.yaml with mode 0644 (world-readable, set at ansible/tasks/setup_axiom.yaml:42). This means the Axiom API token is readable by any user on the system. Consider tightening the file permissions to 0600 or using a systemd environment variable approach similar to how HOSTNAME is handled.

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Fixed in aa31b37. Changed vector.yaml file mode from 0644 to 0600.

…, vector perms - roll.yaml: export GO=go before make build (Makefile defaults to mise exec -- go which isn't on deploy targets) - roll.yaml: fail early if neither branch nor release_tag provided, preventing needless service restart - grafana: group histogram_quantile by (le, instance) to avoid merging latencies across nodes - setup_axiom: tighten vector.yaml to 0600 (contains axiom_token) Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

cursor

Cursor Bugbot has reviewed your changes and found 3 potential issues.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit aa31b37. Configure here.}

cursor · 2026-06-16T22:09:16Z

+    # Goreleaser publishes archives as: smart-git-proxy_<version>_linux_amd64.tar.gz
+    - name: Download release archive
+      get_url:
+        url: "https://github.com/useblacksmith/smart-git-proxy/releases/download/{{ release_tag }}/smart-git-proxy_{{ release_tag | regex_replace('^v', '') }}_linux_amd64.tar.gz"


Wrong GitHub release download URL

High Severity

The release deploy path downloads tarballs from useblacksmith/smart-git-proxy, but GoReleaser in this repo publishes GitHub releases to runs-on/smart-git-proxy. A -e release_tag=... roll therefore requests assets from a repo that does not receive those releases, so the download step fails or never finds the expected archive.

^{Reviewed by Cursor Bugbot for commit aa31b37. Configure here.}

This is by design — releases will be published to useblacksmith/smart-git-proxy (this fork), not the upstream runs-on/smart-git-proxy. The goreleaser config in this repo will publish to this repo's releases page once configured.

cursor · 2026-06-16T22:09:16Z

+    - name: Ensure ENV is determined
+      fail:
+        msg: "Failed to determine environment from inventory file name."
+      when: ENV == ''


Environment tied to inventory filename

Medium Severity

Setup and roll playbooks derive ENV only from whether the inventory filename contains production or staging, then fail if neither substring matches. Inventory files already define env under [all:vars], so a valid inventory with a different filename fails even when env is set correctly for Vector metadata.

Additional Locations (1)

ansible/roll.yaml#L16-L24

^{Reviewed by Cursor Bugbot for commit aa31b37. Configure here.}

Intentional — all inventory files follow the production-*.ini / staging-*.ini naming convention, so the substring check is reliable. Using the inventory-level env var would work too, but the filename approach matches how the storage-agent playbooks handle it and provides an extra safety net (you can't accidentally run a production playbook against a staging inventory even if env is misconfigured).

Ensures apt cache is refreshed after adding the Vector repo so the package is discoverable on first run. Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

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devin-ai-integration Bot commented Jun 16, 2026

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cursor Bot reviewed Jun 16, 2026

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Comment thread ansible/roll.yaml

Comment thread ansible/roll.yaml

Comment thread grafana/dashboards/smart-git-proxy.json Outdated

cursor Bot reviewed Jun 16, 2026

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ansible: add update_cache to vector apt install

666b88e

Ensures apt cache is refreshed after adding the Vector repo so the package is discoverable on first run. Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

-      shell: |
-        set -euo pipefail
-        mkdir -p /tmp/smart-git-proxy-release
-        tar -xzf /tmp/smart-git-proxy-release.tar.gz -C /tmp/smart-git-proxy-release
-        install -m 0755 /tmp/smart-git-proxy-release/smart-git-proxy /usr/local/bin/smart-git-proxy
+    - name: Restart smart-git-proxy
+      systemd:
+        name: smart-git-proxy
+        state: restarted
+        enabled: yes
+      when: branch != "" or release_tag != ""

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Wrong GitHub release download URL

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Environment tied to inventory filename

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devin-ai-integration Bot commented Jun 16, 2026 •

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