Erich Blume
b97e37543f
## Summary - Add Snowflake proxy as a native systemd service on ringtail (NixOS) - Uses `pkgs.snowflake` from nixpkgs (v2.11.0) - Hardened systemd unit with DynamicUser, ProtectSystem=strict, 512MB memory limit - Prometheus metrics enabled on localhost:9999 ## What is Snowflake? A Tor pluggable transport that helps censored users reach the Tor network via WebRTC. **This is NOT a Tor exit node** — traffic exits through Tor exit nodes operated by others. The proxy operator cannot see traffic content (double-encrypted) and destination servers never see the proxy's IP. ## Changes - `nixos/ringtail/configuration.nix` — new systemd service definition - `docs/reference/services/snowflake-proxy.md` — service reference card - `docs/reference/infrastructure/ringtail.md` — updated systemd services section - `service-versions.yaml` — added entry (type: nixos) ## Deploy plan After review, deploy via `mise run provision-ringtail`. Service starts automatically. ## Test plan - [ ] `mise run provision-ringtail` succeeds - [ ] `ssh ringtail 'systemctl status snowflake-proxy'` shows active - [ ] `ssh ringtail 'journalctl -u snowflake-proxy --no-pager -n 20'` shows broker connections - [ ] `ssh ringtail 'curl -s localhost:9999/metrics'` returns Prometheus metrics Reviewed-on: #311
90 lines
2.2 KiB
YAML
90 lines
2.2 KiB
YAML
apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: alloy
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namespace: alloy
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labels:
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app: alloy
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spec:
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selector:
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matchLabels:
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app: alloy
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template:
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metadata:
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labels:
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app: alloy
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spec:
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serviceAccountName: alloy
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securityContext:
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fsGroup: 473 # alloy user group
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containers:
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- name: alloy
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image: registry.ops.eblu.me/blumeops/alloy:kustomized
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args:
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- run
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- --server.http.listen-addr=0.0.0.0:12345
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- --storage.path=/var/lib/alloy/data
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- /etc/alloy/config.alloy
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ports:
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- containerPort: 12345
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name: http
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env:
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- name: HOSTNAME
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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- name: HOST_IP
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valueFrom:
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fieldRef:
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fieldPath: status.hostIP
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resources:
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requests:
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cpu: 50m
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memory: 128Mi
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limits:
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cpu: 500m
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memory: 512Mi
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volumeMounts:
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- name: config
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mountPath: /etc/alloy
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- name: varlog
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mountPath: /var/log
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readOnly: true
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- name: data
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mountPath: /var/lib/alloy/data
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- name: proc
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mountPath: /host/proc
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readOnly: true
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- name: sys
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mountPath: /host/sys
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readOnly: true
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- name: root
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mountPath: /host/root
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mountPropagation: HostToContainer
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readOnly: true
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securityContext:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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capabilities:
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drop:
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- ALL
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tolerations:
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- operator: Exists
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volumes:
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- name: config
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configMap:
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name: alloy-config
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- name: varlog
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hostPath:
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path: /var/log
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- name: data
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emptyDir: {}
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- name: proc
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hostPath:
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path: /proc
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- name: sys
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hostPath:
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path: /sys
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- name: root
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hostPath:
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path: /
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