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Wait for final PostgreSQL database before isolated restore

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Assistant: codex
Assistant-Model: gpt-6.1-sol
Assistant-Session: 01a18e2d-f513-7742-b8e7-12af0b744ff3
This commit is contained in:
tegwick 2026-10-31 01:13:42 +01:00
parent 360b6bdd69
commit 5f973fa9a7
2 changed files with 45 additions and 1 deletions
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39
docs/release/postgres-restore-readiness-2026-10-31.json Normal file
View file

@ -0,0 +1,39 @@
{
"schema": "coulomb.postgres-startup-readiness-observation.v1",
"image": "sha256:ff23cdce56cac62ada6f66013e1a50864c0abbe79d132d40b6e05bd80f378a70",
"observations": [
{
"unix_socket_ready": false,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": false,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": false,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": false,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": false,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": true,
"target_database_tcp_ready": false
},
{
"unix_socket_ready": false,
"target_database_tcp_ready": true
}
],
"early_unix_ready_observed": true,
"final_target_database_tcp_ready": true,
"network": "none",
"published_ports": 0,
"production_data_used": false
}

7
scripts/restore-paired-snapshot.py
View file

@ -116,7 +116,12 @@ def main() -> int:
'-e', 'POSTGRES_DB=coulomb_social_restore', image])
created = True
for _ in range(45):
p = subprocess.run(['docker', 'exec', name, 'pg_isready', '-U', 'postgres'],
# The image's temporary initialization server accepts Unix-socket
# connections before creating the target DB and restarting. Require
# a query against the final TCP server before starting pg_restore.
p = subprocess.run(['docker', 'exec', name, 'psql', '-h', '127.0.0.1',
'-U', 'postgres', '-d', 'coulomb_social_restore',
'-tAc', 'SELECT 1'],
capture_output=True)
if p.returncode == 0:
break