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docs: correctly represent the url and env vars that get injected via docker link

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Closes dokku/dokku-postgres#221
This commit is contained in:
Jose Diaz-Gonzalez
2021-09-12 23:38:51 -04:00
parent fb33e5df96
commit 2ad6cd4b5f
2 changed files with 16 additions and 16 deletions
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16
README.md
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@@ -194,18 +194,18 @@ dokku mysql:link lolipop playground
The following environment variables will be set automatically by docker (not on the app itself, so they won’t be listed when calling dokku config):
```
DOKKU_DATABASE_LOLIPOP_NAME=/lolipop/DATABASE
DOKKU_DATABASE_LOLIPOP_PORT=tcp://172.17.0.1:3306
DOKKU_DATABASE_LOLIPOP_PORT_3306_TCP=tcp://172.17.0.1:3306
DOKKU_DATABASE_LOLIPOP_PORT_3306_TCP_PROTO=tcp
DOKKU_DATABASE_LOLIPOP_PORT_3306_TCP_PORT=3306
DOKKU_DATABASE_LOLIPOP_PORT_3306_TCP_ADDR=172.17.0.1
DOKKU_MYSQL_LOLIPOP_NAME=/lolipop/DATABASE
DOKKU_MYSQL_LOLIPOP_PORT=tcp://172.17.0.1:3306
DOKKU_MYSQL_LOLIPOP_PORT_3306_TCP=tcp://172.17.0.1:3306
DOKKU_MYSQL_LOLIPOP_PORT_3306_TCP_PROTO=tcp
DOKKU_MYSQL_LOLIPOP_PORT_3306_TCP_PORT=3306
DOKKU_MYSQL_LOLIPOP_PORT_3306_TCP_ADDR=172.17.0.1
```
The following will be set on the linked application by default:
```
DATABASE_URL=mysql://lolipop:SOME_PASSWORD@dokku-mysql-lolipop:3306/lolipop
DATABASE_URL=mysql://mysql:SOME_PASSWORD@dokku-mysql-lolipop:3306/lolipop
```
The host exposed here only works internally in docker containers. If you want your container to be reachable from outside, you should use the `expose` subcommand. Another service can be linked to your app:
@@ -224,7 +224,7 @@ dokku mysql:link lolipop playground
This will cause `DATABASE_URL` to be set as:
```
mysql2://lolipop:SOME_PASSWORD@dokku-mysql-lolipop:3306/lolipop
mysql2://mysql:SOME_PASSWORD@dokku-mysql-lolipop:3306/lolipop
```
### unlink the mysql service from the app