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bestia.dev
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103 changes: 103 additions & 0 deletions
103
create_and_push_container_images/postgres_entrypoint.sh
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,103 @@ | ||
| #!/bin/dash | ||
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| # /usr/bin/entrypoint.sh | ||
| # This is a Debian Slim container, so shebang /bin/dash is appropriate for scripting. | ||
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| # Before calling 'podman create', modify this script to your needs. | ||
| # Make the local script file executable before copying into the container: | ||
| # sudo chmod +x ~/rustprojects/crustde_cnt_img_pod/create_and_push_container_images/postgres_entrypoint.sh | ||
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| # First 'create' the container, copy the entrypoint file and then start the container. | ||
| # Multiline block comment in bash script to run all together in bash: | ||
| <<'###BLOCK-COMMENT' | ||
| clear; | ||
| cd ~/rustprojects/crustde_cnt_img_pod/create_and_push_container_images | ||
| printf "\033[0;33m Show existing containers \033[0m\n"; | ||
| podman ps -a; | ||
| printf "\033[0;33m Remove old container \033[0m\n"; | ||
| podman rm -f crustde_postgres_cnt; | ||
| printf "\033[0;33m Podman create \033[0m\n"; | ||
| podman create --name crustde_postgres_cnt -p 5450:5450 -p 5460:5460 --entrypoint /usr/bin/entrypoint.sh docker.io/bestiadev/crustde_postgres_img:postgres15; | ||
| printf "\033[0;33m Copy entrypoint.sh create \033[0m\n"; | ||
| podman cp ~/rustprojects/crustde_cnt_img_pod/create_and_push_container_images/postgres_entrypoint.sh crustde_postgres_cnt:/usr/bin/entrypoint.sh ; | ||
| printf "\033[0;33m Podman start \033[0m\n"; | ||
| podman start crustde_postgres_cnt; | ||
| printf "\033[0;33m Read the log with: podman logs crustde_postgres_cnt \033[0m\n"; | ||
| ###BLOCK-COMMENT | ||
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| # Connect from Debian host of the container: | ||
| # psql -h localhost -p 5450 -U postgres -W | ||
| # SHOW cluster_name; | ||
| # psql -h localhost -p 5460 -U postgres -W | ||
| # SHOW cluster_name; | ||
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| printf "\033[0;33m Running container crustde_postgres_cnt \033[0m\n" | ||
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| printf " \n" | ||
| printf "\033[0;33m Create and run new clusters using the debian wrapper tool pg_createcluster: \033[0m\n" | ||
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| printf " \n" | ||
| printf "\033[0;33m cluster 'dev_01' on port '5450' \033[0m\n" | ||
| printf "\033[0;33m data in /var/lib/postgresql/15/dev_01 \033[0m\n" | ||
| printf "\033[0;33m conf in /etc/postgresql/15/dev_01 \033[0m\n" | ||
| printf "\033[0;33m log in /var/log/postgresql/postgresql-15-dev_01.log \033[0m\n" | ||
| pg_createcluster --port=5450 15 dev_01; | ||
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| printf "\033[0;33m Change the line #listen_addresses = 'localhost' to '*' in /etc/postgresql/15/dev_01/postgresql.conf \033[0m\n" | ||
| sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/g" /etc/postgresql/15/dev_01/postgresql.conf | ||
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| printf "\033[0;33m Change the line in /etc/postgresql/15/dev_01/pg_hba.conf from 127.0.0.1 to 0.0.0.0 \033[0m\n" | ||
| sed -i "s/host all all 127.0.0.1\/32 scram-sha-256/host all all 0.0.0.0\/0 md5/g" /etc/postgresql/15/dev_01/pg_hba.conf | ||
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| pg_ctlcluster 15 dev_01 start; | ||
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| printf "\033[0;33m Set password for postgres user using local peer connection over unix socket \033[0m\n" | ||
| psql -p 5450 -c "ALTER USER postgres WITH PASSWORD 'Passw0rd';" | ||
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| # Check the log | ||
| # podman exec crustde_postgres_cnt cat /var/log/postgresql/postgresql-15-dev_01.log | ||
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| # Connection rule 'listen_addresses' in postgresql.conf | ||
| # podman exec -it crustde_postgres_cnt psql -p 5450 | ||
| # show listen_addresses; | ||
| # SHOW config_file; | ||
| # podman exec -it crustde_postgres_cnt nano /etc/postgresql/15/dev_01/postgresql.conf | ||
| # podman cp crustde_postgres_cnt:/etc/postgresql/15/dev_01/postgresql.conf ./postgresql.conf | ||
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| # The rules who can connect to the cluster is in the file /etc/postgresql/15/dev_01/pg_hba.conf | ||
| # podman exec -it crustde_postgres_cnt nano /etc/postgresql/15/dev_01/pg_hba.conf | ||
| # podman cp crustde_postgres_cnt:/etc/postgresql/15/dev_01/pg_hba.conf ./pg_hba.conf | ||
| # After changes, to reload conf: | ||
| # podman exec -it crustde_postgres_cnt psql -p 5450 | ||
| # SELECT pg_reload_conf(); | ||
| # To see the effective rules in psql: | ||
| # TABLE pg_hba_file_rules; | ||
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| # Run psql from the Debian host of the container: | ||
| # psql -h localhost -p 5450 -U postgres -W | ||
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| printf " \n" | ||
| printf "\033[0;33m cluster 'test_01' on port '5460' \033[0m\n" | ||
| printf "\033[0;33m data in /var/lib/postgresql/15/test_01 \033[0m\n" | ||
| printf "\033[0;33m conf in /etc/postgresql/15/test_01 \033[0m\n" | ||
| printf "\033[0;33m log in /var/log/postgresql/postgresql-15-test_01.log \033[0m\n" | ||
| pg_createcluster --port=5460 15 test_01; | ||
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| printf "\033[0;33m Change the line #listen_addresses = 'localhost' to '*' in /etc/postgresql/15/test_01/postgresql.conf \033[0m\n" | ||
| sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/g" /etc/postgresql/15/test_01/postgresql.conf | ||
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| printf "\033[0;33m Change the line in /etc/postgresql/15/test_01/pg_hba.conf from 127.0.0.1 to 0.0.0.0 \033[0m\n" | ||
| sed -i "s/host all all 127.0.0.1\/32 scram-sha-256/host all all 0.0.0.0\/0 md5/g" /etc/postgresql/15/test_01/pg_hba.conf | ||
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| pg_ctlcluster 15 test_01 start; | ||
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| printf "\033[0;33m Set password for postgres user using local peer connection over unix socket \033[0m\n" | ||
| psql -p 5460 -c "ALTER USER postgres WITH PASSWORD 'Passw0rd';" | ||
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| printf " \n" | ||
| pg_lsclusters | ||
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| # container runs only until there is a foreground process | ||
| # this will make it run forever or at least 24 hours. Enough for development. | ||
| sleep infinity |