.maintain: Replace sentry-node with local-docker-test-network (#7943)

Sentry nodes are deprecated. Thus there is no need for
`.maintain/sentry-node` to spin up a sentry node test environment.
Instead this commit rewrites the setup to contain two full-connected
validators and one light client.

With the steps below one can now spin up a local test network with
two validators, one light-client, Prometheus and Grafana.

- cargo build --release
- sudo docker-compose -f .maintain/local-docker-test-network/docker-compose.yml up

substrate/.maintain/sentry-node/docker-compose.yml → substrate/.maintain/local-docker-test-network/docker-compose.yml

-# Docker compose file to simulate a sentry node setup.
+# Docker compose file to start a multi node local test network.
 #
+# # Nodes
 #
-# Setup:
+# - Validator node A
+# - Validator node B
+# - Light client C
 #
-# Validator A is not supposed to be connected to the public internet. Instead it
-# connects to a sentry node (sentry-a) which connects to the public internet.
-# Validator B can reach validator A via sentry node A and vice versa.
+# # Auxiliary nodes
 #
+# - Prometheus monitoring each node.
+# - Grafana pointed at the Prometheus node, configured with all dashboards.
 #
-# Usage:
+# # Usage
 #
 # 1. Build `target/release/substrate` binary: `cargo build --release`
-#
-# 2. Start networks and containers: `sudo docker-compose -f .maintain/sentry-node/docker-compose.yml up`
-#
-# 3. Reach:
-#   - polkadot/apps on localhost:3000
+# 2. Start networks and containers:
+#    `sudo docker-compose -f .maintain/sentry-node/docker-compose.yml up`
+# 3. Connect to nodes:
 #   - validator-a: localhost:9944
 #   - validator-b: localhost:9945
-#   - sentry-a: localhost:9946
+#   - light-c: localhost:9946
+#   - via polkadot.js/apps: https://polkadot.js.org/apps/?rpc=ws%3A%2F%2Flocalhost%3A<NODE_PORT>#/explorer
 #   - grafana: localhost:3001
 #   - prometheus: localhost:9090
 
@@ -34,9 +36,8 @@ services:
       - ../../target/release/substrate:/usr/local/bin/substrate
     image: parity/substrate
     networks:
-      - network-a
+      - internet
     command:
-      # Local node id: QmRpheLN4JWdAnY7HGJfWFNbfkQCb6tFf4vvA6hgjMZKrR
       - "--node-key"
       - "0000000000000000000000000000000000000000000000000000000000000001"
       - "--base-path"
@@ -46,48 +47,38 @@ services:
       - "30333"
       - "--validator"
       - "--alice"
-      - "--sentry-nodes"
-      - "/dns/sentry-a/tcp/30333/p2p/12D3KooWSCufgHzV4fCwRijfH2k3abrpAJxTKxEvN1FDuRXA2U9x"
-      - "--reserved-nodes"
-      - "/dns/sentry-a/tcp/30333/p2p/12D3KooWSCufgHzV4fCwRijfH2k3abrpAJxTKxEvN1FDuRXA2U9x"
+      - "--bootnodes"
+      - "/dns/validator-b/tcp/30333/p2p/12D3KooWHdiAxVd8uMQR1hGWXccidmfCwLqcMpGwR6QcTP6QRMuD"
       # Not only bind to localhost.
       - "--unsafe-ws-external"
       - "--unsafe-rpc-external"
-      # - "--log"
-      # - "sub-libp2p=trace"
-      # - "--log"
-      # - "afg=trace"
       - "--log"
-      - "sub-authority-discovery=trace"
+      - "sub-libp2p=trace"
       - "--no-telemetry"
       - "--rpc-cors"
       - "all"
       - "--prometheus-external"
 
-  sentry-a:
+  validator-b:
     image: parity/substrate
     ports:
-      - "9946:9944"
+      - "9945:9944"
     volumes:
       - ../../target/release/substrate:/usr/local/bin/substrate
     networks:
-      - network-a
       - internet
     command:
-      # Local node id: QmV7EhW6J6KgmNdr558RH1mPx2xGGznW7At4BhXzntRFsi
       - "--node-key"
-      - "0000000000000000000000000000000000000000000000000000000000000003"
+      - "0000000000000000000000000000000000000000000000000000000000000002"
       - "--base-path"
-      - "/tmp/sentry"
+      - "/tmp/bob"
       - "--chain=local"
       - "--port"
       - "30333"
-      - "--sentry"
-      - "/dns/validator-a/tcp/30333/p2p/12D3KooWEyoppNCUx8Yx66oV9fJnriXwCcXwDDUA2kj6vnc6iDEp"
-      - "--reserved-nodes"
-      - "/dns/validator-a/tcp/30333/p2p/12D3KooWEyoppNCUx8Yx66oV9fJnriXwCcXwDDUA2kj6vnc6iDEp"
+      - "--validator"
+      - "--bob"
       - "--bootnodes"
-      - "/dns/validator-b/tcp/30333/p2p/12D3KooWHdiAxVd8uMQR1hGWXccidmfCwLqcMpGwR6QcTP6QRMuD"
+      - "/dns/validator-a/tcp/30333/p2p/12D3KooWEyoppNCUx8Yx66oV9fJnriXwCcXwDDUA2kj6vnc6iDEp"
       - "--no-telemetry"
       - "--rpc-cors"
       - "all"
@@ -95,32 +86,30 @@ services:
       - "--unsafe-ws-external"
       - "--unsafe-rpc-external"
       - "--log"
-      - "sub-authority-discovery=trace"
+      - "sub-libp2p=trace"
       - "--prometheus-external"
 
-  validator-b:
+  light-c:
     image: parity/substrate
     ports:
-      - "9945:9944"
+      - "9946:9944"
     volumes:
       - ../../target/release/substrate:/usr/local/bin/substrate
     networks:
       - internet
     command:
-      # Local node id: QmSVnNf9HwVMT1Y4cK1P6aoJcEZjmoTXpjKBmAABLMnZEk
       - "--node-key"
-      - "0000000000000000000000000000000000000000000000000000000000000002"
+      - "0000000000000000000000000000000000000000000000000000000000000003"
       - "--base-path"
-      - "/tmp/bob"
+      - "/tmp/light"
       - "--chain=local"
       - "--port"
       - "30333"
-      - "--validator"
-      - "--bob"
+      - "--light"
       - "--bootnodes"
       - "/dns/validator-a/tcp/30333/p2p/12D3KooWEyoppNCUx8Yx66oV9fJnriXwCcXwDDUA2kj6vnc6iDEp"
       - "--bootnodes"
-      - "/dns/sentry-a/tcp/30333/p2p/12D3KooWSCufgHzV4fCwRijfH2k3abrpAJxTKxEvN1FDuRXA2U9x"
+      - "/dns/validator-b/tcp/30333/p2p/12D3KooWHdiAxVd8uMQR1hGWXccidmfCwLqcMpGwR6QcTP6QRMuD"
       - "--no-telemetry"
       - "--rpc-cors"
       - "all"
@@ -128,20 +117,19 @@ services:
       - "--unsafe-ws-external"
       - "--unsafe-rpc-external"
       - "--log"
-      - "sub-authority-discovery=trace"
+      - "sub-libp2p=trace"
       - "--prometheus-external"
 
   prometheus:
     image: prom/prometheus
     networks:
-      - network-a
       - internet
     ports:
       - "9090:9090"
     links:
       - validator-a:validator-a
-      - sentry-a:sentry-a
       - validator-b:validator-b
+      - light-c:light-c
     volumes:
       - ./prometheus/:/etc/prometheus/
     restart: always
@@ -152,7 +140,6 @@ services:
     depends_on:
       - prometheus
     networks:
-      - network-a
       - internet
     ports:
       - 3001:3000

substrate/.maintain/sentry-node/prometheus/prometheus.yml → substrate/.maintain/local-docker-test-network/prometheus/prometheus.yml

@@ -7,9 +7,9 @@ scrape_configs:
       - targets: ['validator-a:9615']
         labels:
           network: dev
-      - targets: ['sentry-a:9615']
+      - targets: ['validator-b:9615']
         labels:
           network: dev
-      - targets: ['validator-b:9615']
+      - targets: ['light-c:9615']
         labels:
           network: dev