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https://github.com/kuhyx/WUT_Computer_Science.git
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67 lines
2.0 KiB
Bash
Executable File
67 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# Define variables (consider using a config file for flexibility)
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DB_USER="postgres"
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DB_PASSWORD="password"
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DB_NAME="mydb"
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DB_SCHEMA="public"
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DB_PORT="5432"
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# Detect Linux distribution
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if [[ -f /etc/arch-release ]]; then
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# Arch Linux
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echo "Detected Arch Linux"
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INSTALL_CMD="sudo pacman -S --noconfirm"
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SERVICE_CMD="sudo systemctl"
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CONFIG_DIR="/var/lib/postgres/data"
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elif [[ -f /etc/debian_version ]]; then
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# Debian-based (Debian, Ubuntu, etc.)
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echo "Detected Debian-based Linux"
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INSTALL_CMD="sudo apt-get install -y"
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SERVICE_CMD="sudo service"
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CONFIG_DIR="/etc/postgresql"
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else
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echo "Unsupported Linux distribution. Exiting."
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exit 1
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fi
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# Update package lists (important for Debian-based)
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if [[ $INSTALL_CMD == *"apt-get"* ]]; then
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sudo apt-get update -y
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fi
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# Install PostgreSQL
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$INSTALL_CMD postgresql
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# Initialize the database cluster (Arch only)
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if [[ $INSTALL_CMD == *"pacman"* ]]; then
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sudo -iu postgres initdb --locale $LANG -E UTF8 -D "$CONFIG_DIR"
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fi
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# Start and enable PostgreSQL service
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$SERVICE_CMD start postgresql
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$SERVICE_CMD enable postgresql
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# Switch to the postgres user to set up the database and user
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sudo -iu postgres psql <<EOF
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ALTER USER $DB_USER WITH PASSWORD '$DB_PASSWORD';
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CREATE DATABASE $DB_NAME;
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EOF
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# Modify configuration files to allow password authentication (Arch only)
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if [[ $INSTALL_CMD == *"pacman"* ]]; then
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sudo sed -i "s/#listen_addresses = 'localhost'/listen_addresses = 'localhost'/g" "$CONFIG_DIR/postgresql.conf"
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sudo sed -i "s/peer/md5/g" "$CONFIG_DIR/pg_hba.conf"
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sudo sed -i "s/ident/md5/g" "$CONFIG_DIR/pg_hba.conf"
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fi
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# Restart PostgreSQL to apply changes
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$SERVICE_CMD restart postgresql
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# Export the DATABASE_URL
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export DATABASE_URL="postgresql://$DB_USER:$DB_PASSWORD@localhost:$DB_PORT/$DB_NAME?schema=$DB_SCHEMA"
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# Print the DATABASE_URL to verify
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echo "DATABASE_URL="$DATABASE_URL""
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echo "PostgreSQL setup is complete. The database is accessible at the specified URL."
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