LiamPietralla/code-snippets
1
0
Fork 0
Code Pull Requests Actions Packages Activity

update commands for postgres

Browse Source
This commit is contained in:
Liam Pietralla
2025-10-16 08:33:38 +11:00
parent 32f943ac34
commit 54ed8d999f
1 changed files with 22 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
docs/postgres/dump-and-restore.md
View File

@@ -2,20 +2,38 @@
Handy commands for dumping and restoring Postgres databases.
:::info
::: info
Most of these commands are run using Docker as then we don't need to have Postgres installed locally.
If a different version of Postgres is needed, just change the version number in the Docker image tag.
:::
## Setup
Create a pgpass file in the current directory with the following content:
```
<server>:<port>:<database>:<username>:<password>
```
::: tip
Use `*` as a wildcard for any of the fields except for the password.
:::
## Dumping a Database
```bash
docker run --network host --rm -v .:/tmp -e PGPASSWORD=mysecretpassword postgres:16 pg_dump -h localhost -U myuser -d mydb -f /tmp/dump.sql
docker run --network host --rm -v .:/tmp -v ./pgpass:/root/.pgpass -e PGPASSFILE=/root/.pgpass postgres:16 bash -c "chmod 600 /root/.pgpass && pg_dump -h <server> -p <port> -U <username> <database> -f /tmp/$(date +%Y%m%d_%H%M%S)_<database>_dump.sql -c --if-exists"
```
## Restoring a Database
## Dumping a Cluster
```bash
docker run --network host --rm -v .:/tmp -e PGPASSWORD=mysecretpassword postgres:16 psql -h localhost -U myuser -d mydb -f /tmp/dump.sql
docker run --network host --rm -v .:/tmp -v ./pgpass:/root/.pgpass -e PGPASSFILE=/root/.pgpass postgres:16 bash -c "chmod 600 /root/.pgpass && pg_dumpall -h <server> -p <port> -U <username> -f /tmp/$(date +%Y%m%d_%H%M%S)_<server>_cluster_dump.sql -c --if-exists"
```
## Restoring from a SQL Dump
```bash
docker run --network host --rm -v .:/tmp -v ./pgpass:/root/.pgpass -e PGPASSFILE=/root/.pgpass postgres:16 bash -c "chmod 600 /root/.pgpass && psql -h <server> -p <port> -U <username> <database> -f /tmp/dump.sql -X"
```