我在这个项目中使用了docker-compose。两个docker容器均已成功启动。
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
但是，当尝试检查服务的功能时-他无法连接到数据库。我尝试手动执行此操作：
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#
奇怪，以防万一容器网络的类型是桥梁：
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
已检查的postgres启动日志：
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
看起来postgre始于ip 0.0.0.0
我查看了dockerip addr show命令使用的IP 。尝试使用此ip重新连接：
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?
我如何尝试将脚本连接到数据库？
psql -h psql_postgis_db -U gis_admin gis
# or
psql -h psql_postgis_db gis gis_admin
您尝试使用的IP均未正确。
从您的启动日志中，我们可以看到您的postgres应该正确监听。0.0.0.0实际上不是真正的IP：它代表“此主机上配置的任何IP”。
您可以寻找postgres容器的ip与之联系（例如，参见SO上的此答案），但是您甚至不必这样做。docker / docker-compose通过自动将同一网络上的容器/服务名称映射到其各自的IP，使您轻松实现这一点。因此，使用服务名称即可访问您的数据库服务器psql_postgis_db
我真的不明白您在命令-U选项中写的内容psql（用户名+数据库名的混合...）。无论如何，它应该是您要用于连接到postgres服务器的用户名。在您的撰写文件中为gis_admin。由于没有与用户同名的数据库，因此需要指定要连接的数据库名称。您可以使用-Uoption（psql -U <user> <db>）或位置参数（psql <db> <user>）
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我来说两句