feat: (fake release trigger) Bump default EN to v27.2.0 (#41)

## What ❔

Subj

## Why ❔

Due to incorrect repo merge settings it was allowed to merge without
squash so commits went to main without semver prefixes and did not
trigger release

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Documentation comments have been added / updated.

README.md

@@ -99,10 +99,10 @@ Basic auth secret can be generated by `htpasswd` and `sed` for interpolation:
 2. Prepare the latest database backup on your host. you can download it from our public GCS buckets:
 Skip this step if you are recovering from a snapshot!
 
-* [Era Mainnet latest dump](https://storage.googleapis.com/zksync-era-mainnet-external-node-backups/external_node_latest.pgdump)
+* [Era Mainnet latest dump](https://en-backups.matterlabs.dev/)
 * [Era Sepolia Testnet latest dump](https://storage.googleapis.com/zksync-era-testnet-sepolia-external-node-backups/external_node_latest.pgdump)
 
-Downloaded dump file should be placed into `{{ storage_directory }}/pg_backups` directory (`/usr/src/en/pg_backups` by default)
+Downloaded dump, if needed, should be unarchived and named `external_node_latest.pgdump`. File should be placed into `{{ storage_directory }}/pg_backups` directory (`/usr/src/en/pg_backups` by default).
 
 3. **OPTIONAL**: If you already have running node, you can copy its tree and state directory to a new host's `{{ storage_directory }}/db`. (`/usr/src/en/db` by default)
 Skip this step if you are recovering from a snapshot!

defaults/main.yml

@@ -11,7 +11,7 @@ docker_compose_version: "v2.23.0"
 # Versions of External Node and 3rd party components
 traefik_version: 2.11
 postgres_version: 14
-external_node_version: 24.26.0
+external_node_version: 27.2.0
 external_node_raw_docker_tag: ""
 vmagent_version: 1.100.1
 cadvisor_version: 0.47.2
@@ -64,6 +64,9 @@ postgres_replica_user_password: ""
 postgres_replica_auth_method: "scram-sha-256"
 postgres_replication_bind_address: ""
 postgres_replica_address: ""
+backup_db_user: ""
+backup_db_password: ""
+backup_db_name: ""
 
 # Enable TLS for traefik
 enable_tls: false
@@ -85,6 +88,8 @@ snapshots_bucket_base_url: ""
 enable_consensus: false
 consensus_secrets_file: ""
 consensus_port: 3054
+consensus_debug_port_enabled: false
+consensus_debug_port: 5000
 consensus_outbound: []
 
 # External Node and database options

example_playbooks/mainnet_with_snapshots_recovery/README.md

@@ -8,16 +8,16 @@ To run this playbook, first install dependencies
 
 ```shell
  ansible-galaxy install -r requirements.yml
- ``` 
+ ```
 
 and then you can run the playbook using
 
 ```shell
  ansible-playbook playbook.yml -i hosts.ini -K
- ``` 
+ ```
 
 To see logs you can use
 
 ```shell
- docker logs en-external_node-1 
- ``` 
+ docker logs en-external_node-1
+ ```

tasks/replication.yml

@@ -40,3 +40,21 @@
     login_user: "{{ database_username }}"
     login_password: "{{ database_password }}"
     query: "SELECT pg_reload_conf()"
+
+- name: Create postgres backup user
+  community.postgresql.postgresql_user:
+    login_host: "{{ postgres_replication_bind_address }}"
+    login_user: "{{ database_username }}"
+    login_password: "{{ database_password }}"
+    name: "{{ backup_db_user }}"
+    password: "{{ backup_db_password }}"
+
+- name: Grant role pg_read_all_data to backup user
+  community.postgresql.postgresql_membership:
+    login_host: "{{ postgres_replication_bind_address }}"
+    login_user: "{{ database_username }}"
+    login_password: "{{ database_password }}"
+    group: pg_read_all_data
+    target_roles:
+      - "{{ backup_db_user }}"
+    state: present

templates/consensus_config.yaml.j2

@@ -1,9 +1,13 @@
 server_addr: '0.0.0.0:3054'
 public_addr: '{{ ansible_default_ipv4.address }}:{{ consensus_port }}'
 max_payload_size: 5000000
-gossip_dynamic_inbound_limit: 100
-gossip_static_outbound:
-{% for item in consensus_outbound %}
-  - key: {{ item.key }}
-    addr: {{ item.addr }}
-{% endfor %}
+gossip_dynamic_inbound_limit: 200
+{% if consensus_debug_port_enabled %}
+debug_page_addr: "0.0.0.0:{{ consensus_debug_port }}"
+{% endif %}
+rpc_config:
+  get_block_rate:
+    burst: 5
+    refresh: # 0.2s
+      seconds: 0
+      nanos: 200000000