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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-05 13:42:41 +0100 (Wed, 05 Aug 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# https://hub.docker.com/_/postgres
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Boots a quick PostgreSQL docker container and drops you in to the 'psql' shell
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Automatically createst shared bind mount points inside the container for convenience:
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sql => /sql
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repo => /code
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\$PWD => /pwd
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You can quickly test scripts via include, eg.
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\i /sql/postgres_running_queries.sql
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Multiple invocations of this script will connect to the same Postgres container if already running
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and the last invocation of this script to exit from the psql shell will delete that container
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args=""
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help_usage "$@"
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container_name=postgres
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version="${POSTGRESQL_VERSION:-${POSTGRES_VERSION:-latest}}"
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password="${PGPASSWORD:-${POSTGRESQL_PASSWORD:-${POSTGRES_PASSWORD:-test}}}"
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sql_scripts="$srcdir/sql"
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if [ -d "$srcdir/../sql" ]; then
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sql_scripts="$srcdir/../sql"
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fi
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if ! docker ps -qf name=postgres | grep -q .; then
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timestamp 'booting postgres container:'
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docker run -d -ti \
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--name "$container_name" \
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-p 5432:5432 \
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-e POSTGRES_PASSWORD="$password" \
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-v "$srcdir:/bash" \
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-v "$sql_scripts:/sql" \
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-v "$HOME/github:/github" \
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-v "$PWD:/pwd" \
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-v "$srcdir/setup/postgresql.conf:/etc/postgresql/postgresql.conf" \
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postgres:"$version" \
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-c 'config_file=/etc/postgresql/postgresql.conf'
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SECONDS=0
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timestamp 'waiting for postgres to be ready to accept connections before connecting psql...'
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while true; do
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if [ "$(docker logs "$container_name" | grep -c 'ready to accept connections')" -gt 1 ]; then
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break
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fi
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sleep 0.1
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if [ $SECONDS -gt 20 ]; then
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echo "PostgreSQL failed to become ready for connections within 20 secs, check logs (format may have changed):"
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echo
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docker logs "$container_name"
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exit 1
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fi
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done
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echo
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fi
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cat <<EOF
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SQL scripts are mounted at /sql
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Bash scripts are mounted at /bash
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\$PWD is mounted at /pwd
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\$HOME/github is mounted at /github
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To source a SQL script, do:
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\i /sql/<file>.sql
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\! to get to shell command line
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EOF
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docker exec -ti -w /sql postgres psql -U postgres
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if [ "$(lsof -lnt "$0" | grep -c .)" -lt 2 ]; then
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echo "last session closing, deleting container:"
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docker rm -f "$container_name"
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fi
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