Eu usei o docker-compose do projeto Openpoiservice . Ambos os contêineres do Docker foram iniciados com sucesso.
kshnkvn@kshnkvn-vb:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
10fafbab73dc openpoiservice_gunicorn_flask "/ops_venv/bin/gunic…" 23 minutes ago Up 22 minutes 0.0.0.0:5000->5000/tcp openpoiservice_gunicorn_flask_1
a66fe5691455 kartoza/postgis:11.0-2.5 "/bin/sh -c /docker-…" 23 minutes ago Up 22 minutes 5432/tcp openpoiservice_psql_postgis_db_1
Mas ao tentar verificar a funcionalidade do serviço, ele não pôde se conectar ao banco de dados. Tentei fazer manualmente:
kshnkvn@kshnkvn-vb:~$ docker exec -it 10fafbab73dc /bin/bash
root@10fafbab73dc:/deploy/app# psql -h localhost -U gis_admin-gis
psql: could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Cannot assign requested address
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
root@10fafbab73dc:/deploy/app#
Estranho, verificado apenas no caso de o tipo de rede de contêineres ser a ponte:
kshnkvn@kshnkvn-vb:~$ docker network ls
NETWORK ID NAME DRIVER SCOPE
81001dac99c0 bridge bridge local
8e65fb4ef6f8 host host local
94ce4e1605ef none null local
a3f48ac3facc openpoiservice_default bridge local
e3d4286df013 openpoiservice_poi_network bridge local
Registros de inicialização do Postgres verificados:
kshnkvn@kshnkvn-vb:~$ docker logs a66fe5691455
Add rule to pg_hba: 0.0.0.0/0
Add rule to pg_hba: replication replicator
Setup master database
psql: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
2020-02-08 13:50:20.675 UTC [25] LOG: listening on IPv4 address "127.0.0.1", port 5432
2020-02-08 13:50:20.683 UTC [25] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
2020-02-08 13:50:20.756 UTC [37] LOG: database system was interrupted; last known up at 2020-02-08 13:35:17 UTC
2020-02-08 13:50:21.830 UTC [48] postgres@postgres FATAL: the database system is starting up
psql: FATAL: the database system is starting up
2020-02-08 13:50:22.726 UTC [37] LOG: database system was not properly shut down; automatic recovery in progress
2020-02-08 13:50:22.730 UTC [37] LOG: redo starts at 0/21CCC50
2020-02-08 13:50:22.730 UTC [37] LOG: invalid record length at 0/21CCC88: wanted 24, got 0
2020-02-08 13:50:22.730 UTC [37] LOG: redo done at 0/21CCC50
2020-02-08 13:50:22.867 UTC [25] LOG: database system is ready to accept connections
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+-----------+----------+---------+---------+-----------------------
gis | gis_admin | UTF8 | C.UTF-8 | C.UTF-8 |
postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 |
template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(4 rows)
postgres ready
Setup postgres User:Password
Creating superuser gis_admin
ALTER ROLE
Creating replication user replicator
ALTER ROLE
gis db already exists
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+-----------+----------+---------+---------+-----------------------
gis | gis_admin | UTF8 | C.UTF-8 | C.UTF-8 |
postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 |
template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(4 rows)
2020-02-08 13:50:24.785 UTC [25] LOG: received smart shutdown request
2020-02-08 13:50:24.799 UTC [25] LOG: background worker "logical replication launcher" (PID 58) exited with exit code 1
2020-02-08 13:50:24.801 UTC [53] LOG: shutting down
2020-02-08 13:50:24.838 UTC [25] LOG: database system is shut down
Postgres initialisation process completed .... restarting in foreground
2020-02-08 13:50:25.842 UTC [148] LOG: listening on IPv4 address "0.0.0.0", port 5432
2020-02-08 13:50:25.842 UTC [148] LOG: listening on IPv6 address "::", port 5432
2020-02-08 13:50:25.850 UTC [148] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
2020-02-08 13:50:25.880 UTC [150] LOG: database system was shut down at 2020-02-08 13:50:24 UTC
2020-02-08 13:50:25.887 UTC [148] LOG: database system is ready to accept connections
Parece que o Postgres começou no endereço IP 0.0.0.0.
Observei quais IPs são usados pelo ip addr show
comando do Docker. Tentei reconectar usando este IP:
psql: could not connect to server: Connection refused
Is the server running on host "172.17.0.1" and accepting
TCP/IP connections on port 5432?
root@10fafbab73dc:/deploy/app# psql -h 172.17.255.255 -U gis_admin-gis
psql: could not connect to server: Connection timed out
Is the server running on host "172.17.255.255" and accepting
TCP/IP connections on port 5432?
O que posso tentar fazer para conectar o script ao banco de dados?
TLDR;
Problema com o endereço do servidor
Nenhum dos IPs que você está tentando está realmente correto.
A partir de seus logs de início, podemos ver que seu postgres deve estar ouvindo corretamente. 0.0.0.0 não é realmente um ip real: significa "qualquer ip configurado neste host".
Você poderia procurar o ip do seu container postgres para contatá-lo (veja por exemplo esta resposta em SO ), mas você nem precisa. docker/docker-compose estão facilitando isso para você mapeando nomes de contêiner/serviço na mesma rede para seus respectivos IPs automaticamente. Portanto, seu servidor db pode ser acessado usando o nome do serviço
psql_postgis_db
Problema com usuário e nome de banco de dados
Eu realmente não entendi o que você escreveu em sua
-U
opção para opsql
comando (uma mistura de usuário + nome do db ...). De qualquer forma, deve ser o nome de usuário que você deseja usar para se conectar ao servidor postgres. Do seu arquivo de composição égis_admin
. Como não há banco de dados com o mesmo nome do usuário, você precisa especificar o nome do banco de dados ao qual deseja se conectar. Você usa a-U
opção (psql -U <user> <db>
) ou usa parâmetros posicionais (psql <db> <user>
)Basta adicionar os parâmetros de portas ao docker-compose.yml.
Exemplo: