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cluster/services/patroni: test takeovers

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This commit is contained in:
Max Headroom 2024-08-15 01:07:07 +02:00
parent c5a8cfe852
commit 5257d4e70b
2 changed files with 31 additions and 0 deletions
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5
cluster/services/patroni/simulacrum/test-data.nix
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@ -3,12 +3,17 @@
patroni = lib.mkIf config.simulacrum {
databases = config.lib.forService "patroni" {
testdb.owner = "testuser";
existingdb.owner = "existinguser";
};
users = config.lib.forService "patroni" {
testuser.locksmith = {
nodes = config.services.patroni.nodes.haproxy;
format = "pgpass";
};
existinguser.locksmith = {
nodes = config.services.patroni.nodes.haproxy;
format = "pgpass";
};
};
};
}

26
cluster/services/patroni/simulacrum/test.nix
View file

@ -87,5 +87,31 @@ in
for client in clients:
client.succeed(f"PGPASSFILE=/run/locksmith/patroni-testuser psql -h ${link.ipv4} -p ${link.portStr} -U testuser -d testdb --command='create table test_table_{client.name} as select * from generate_series(1, 10) as val;'")
client.fail("PGPASSFILE=/run/locksmith/patroni-testuser psql -h ${link.ipv4} -p ${link.portStr} -U testuser -d postgres --command='select * from dummy;'")
with subtest("should take over existing databases and users via incandescence"):
for cmd in [
"drop database existingdb;",
"drop user existinguser;",
"create database existingdb owner postgres;",
"create user existinguser;"
]:
clients[0].succeed(f"psql -h ${link.ipv4} -p ${link.portStr} -U postgres --command='{cmd}'")
for client in clients:
client.fail(f"PGPASSFILE=/run/locksmith/patroni-existinguser psql -h ${link.ipv4} -p ${link.portStr} -U existinguser -d existingdb --command='create table test_table_{client.name} as select * from generate_series(1, 10) as val;'")
consulConfig = json.loads(clients[0].succeed("cat /etc/consul.json"))
addr = consulConfig["addresses"]["http"]
port = consulConfig["ports"]["http"]
setEnv = f"CONSUL_HTTP_ADDR={addr}:{port}"
clients[0].succeed(f"{setEnv} consul kv delete --recurse services/incandescence/providers/patroni/formulae/database/existingdb")
clients[0].succeed(f"{setEnv} consul kv delete --recurse services/incandescence/providers/patroni/formulae/user/existinguser")
for node in nodes:
node.systemctl("restart incandescence-patroni.target")
clients[0].succeed("[[ $(psql -h ${link.ipv4} -p ${link.portStr} -U postgres --tuples-only --csv --command=\"SELECT pg_roles.rolname FROM pg_database JOIN pg_roles ON pg_database.datdba = pg_roles.oid WHERE pg_database.datname = 'existingdb'\") == existinguser ]]")
for client in clients:
client.succeed(f"PGPASSFILE=/run/locksmith/patroni-existinguser psql -h ${link.ipv4} -p ${link.portStr} -U existinguser -d existingdb --command='create table test_table_{client.name} as select * from generate_series(1, 10) as val;'")
client.fail("PGPASSFILE=/run/locksmith/patroni-existinguser psql -h ${link.ipv4} -p ${link.portStr} -U existinguser -d postgres --command='select * from dummy;'")
'';
}