Add headless Angor services and shared-index install guard

apps/angor-relay/README.md

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+# Angor Relay
+
+Optional standalone strfry relay for Angor's public project metadata. See
+[Angor Indexer setup](../angor-indexer/README.md) for client URLs and HTTPS/WSS.
+
+The gate exposes port 8091 for Nostr clients. strfry validates event signatures;
+this is a public relay, not a private messaging archive. It mounts only
+`/var/lib/archipelago/angor-relay` and its separate configuration directory.
+It never opens, reconfigures or shares the node's internal strfry database.
+
+The configuration is seeded only when absent, preserving operator changes.
+Stop the service before making a consistent backup of its event database.
+Ordinary start/restart/recreation preserves both mounts. Use the standard app
+lifecycle; do not manually recreate a systemd-managed container.
+
+## Image provenance
+
+Mirrored from `docker.io/dockurr/strfry:1.1.2`, upstream manifest digest
+`sha256:e81d238db13507f6ef24c49d47cd0b0ea58ff207961f10581fa2a7c901054df4`.
+The public Angor policy is supplied by this app's own configuration; it does not
+reuse the internal relay's event whitelist.

apps/angor-relay/manifest.yml

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+app:
+  id: angor-relay
+  name: Angor Relay
+  version: 1.1.2
+  upstream:
+    kind: github
+    repo: hoytech/strfry
+  description: Optional dedicated Nostr relay for Angor project metadata. Separate
+    storage and access settings keep the node’s internal relay private. Add this service’s
+    address to Angor’s relay settings; use WSS for browser clients.
+  container:
+    image: source.archipelago-foundation.org/chaum/angor-relay:1.1.2
+    pull_policy: if-not-present
+  dependencies:
+  - storage: 5Gi
+  resources:
+    cpu_limit: 1
+    memory_limit: 512Mi
+    disk_limit: 5Gi
+  security:
+    capabilities: []
+    readonly_root: true
+    no_new_privileges: true
+    seccomp_profile: default
+    network_policy: isolated
+    apparmor_profile: nostr-relay
+  ports:
+  - host: 8091
+    container: 7777
+    protocol: tcp
+    bind: 127.0.0.1
+    auth: open
+    auth_rationale: Dedicated public Nostr relay for Angor project metadata; strfry verifies event signatures. It has separate storage from the private node relay and no wallet or node credentials.
+  volumes:
+  - type: bind
+    source: /var/lib/archipelago/angor-relay
+    target: /app/strfry-db
+    options:
+    - rw
+  - type: bind
+    source: /var/lib/archipelago/angor-relay-config/angor-relay.conf
+    target: /etc/strfry.conf
+    options:
+    - ro
+  files:
+  - path: /var/lib/archipelago/angor-relay-config/angor-relay.conf
+    overwrite: false
+    content: |
+      ##
+      ## Default strfry config
+      ##
+
+      # Directory that contains the strfry LMDB database (restart required)
+      db = "./strfry-db/"
+
+      dbParams {
+          # Maximum number of threads/processes that can simultaneously have LMDB transactions open (restart required)
+          maxreaders = 256
+
+          # Size of mmap() to use when loading LMDB (default is 10TB, does *not* correspond to disk-space used) (restart required)
+          mapsize = 10995116277760
+
+          # Disables read-ahead when accessing the LMDB mapping. Reduces IO activity when DB size is larger than RAM. (restart required)
+          noReadAhead = false
+      }
+
+      events {
+          # Maximum size of normalised JSON, in bytes
+          maxEventSize = 65536
+
+          # Events newer than this will be rejected
+          rejectEventsNewerThanSeconds = 900
+
+          # Events older than this will be rejected
+          rejectEventsOlderThanSeconds = 94608000
+
+          # Ephemeral events older than this will be rejected
+          rejectEphemeralEventsOlderThanSeconds = 60
+
+          # Ephemeral events will be deleted from the DB when older than this
+          ephemeralEventsLifetimeSeconds = 300
+
+          # Maximum number of tags allowed
+          maxNumTags = 2000
+
+          # Maximum size for tag values, in bytes
+          maxTagValSize = 1024
+      }
+
+      relay {
+          # Interface to listen on. Use 0.0.0.0 to listen on all interfaces (restart required)
+          bind = "0.0.0.0"
+
+          # Port to open for the nostr websocket protocol (restart required)
+          port = 7777
+
+          # Set OS-limit on maximum number of open files/sockets (if 0, don't attempt to set) (restart required)
+          nofiles = 0
+
+          # HTTP header that contains the client's real IP, before reverse proxying (ie x-real-ip) (MUST be all lower-case)
+          realIpHeader = ""
+
+          info {
+              # NIP-11: Name of this server. Short/descriptive (< 30 characters)
+              name = "Angor Relay"
+
+              # NIP-11: Detailed information about relay, free-form
+              description = "Dedicated public relay for Angor project metadata."
+
+              # NIP-11: Administrative nostr pubkey, for contact purposes
+              pubkey = ""
+
+              # NIP-11: Alternative administrative contact (email, website, etc)
+              contact = ""
+
+              # NIP-11: URL pointing to an image to be used as an icon for the relay
+              icon = ""
+
+              # List of supported lists as JSON array, or empty string to use default. Example: "[1,2]"
+              nips = ""
+          }
+
+          # Maximum accepted incoming websocket frame size (should be larger than max event) (restart required)
+          maxWebsocketPayloadSize = 131072
+
+          # Maximum number of filters allowed in a REQ
+          maxReqFilterSize = 200
+
+          # Websocket-level PING message frequency (should be less than any reverse proxy idle timeouts) (restart required)
+          autoPingSeconds = 55
+
+          # If TCP keep-alive should be enabled (detect dropped connections to upstream reverse proxy)
+          enableTcpKeepalive = false
+
+          # How much uninterrupted CPU time a REQ query should get during its DB scan
+          queryTimesliceBudgetMicroseconds = 10000
+
+          # Maximum records that can be returned per filter
+          maxFilterLimit = 500
+
+          # Maximum number of subscriptions (concurrent REQs) a connection can have open at any time
+          maxSubsPerConnection = 20
+
+          writePolicy {
+              # If non-empty, path to an executable script that implements the writePolicy plugin logic
+              plugin = ""
+          }
+
+          compression {
+              # Use permessage-deflate compression if supported by client. Reduces bandwidth, but slight increase in CPU (restart required)
+              enabled = true
+
+              # Maintain a sliding window buffer for each connection. Improves compression, but uses more memory (restart required)
+              slidingWindow = true
+          }
+
+          logging {
+              # Dump all incoming messages
+              dumpInAll = false
+
+              # Dump all incoming EVENT messages
+              dumpInEvents = false
+
+              # Dump all incoming REQ/CLOSE messages
+              dumpInReqs = false
+
+              # Log performance metrics for initial REQ database scans
+              dbScanPerf = false
+
+              # Log reason for invalid event rejection? Can be disabled to silence excessive logging
+              invalidEvents = true
+          }
+
+          numThreads {
+              # Ingester threads: route incoming requests, validate events/sigs (restart required)
+              ingester = 3
+
+              # reqWorker threads: Handle initial DB scan for events (restart required)
+              reqWorker = 3
+
+              # reqMonitor threads: Handle filtering of new events (restart required)
+              reqMonitor = 3
+
+              # negentropy threads: Handle negentropy protocol messages (restart required)
+              negentropy = 2
+          }
+
+          negentropy {
+              # Support negentropy protocol messages
+              enabled = true
+
+              # Maximum records that sync will process before returning an error
+              maxSyncEvents = 1000000
+          }
+      }
+  health_check:
+    type: http
+    endpoint: http://127.0.0.1:7777
+    path: /health
+    interval: 30s
+    timeout: 5s
+    retries: 3
+  nostr_integration:
+    relay_type: public
+    monetization_enabled: false
+  category: nostr
+  interfaces:
+    main:
+      name: Angor Relay
+      description: Nostr WebSocket endpoint; use ws:// for LAN or wss:// through your
+        HTTPS domain.
+      type: api
+      port: 8091
+      protocol: http
+      path: /
+  metadata:
+    icon: /assets/img/app-icons/angor.svg
+    tier: optional
+    repo: https://github.com/hoytech/strfry
+    features:
+    - Angor project metadata
+    - Separate from the node relay
+    - Persistent Nostr event storage