utility-scripts/docker-run-ibm-db2-server at master · mgmorey/utility-scripts · GitHub

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#!/bin/sh -eu

# docker-run-ibm-db2-server: run IBM Db2 server in container
# Copyright (C) 2020  "Michael G. Morey" <mgmorey@gmail.com>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

CONTAINER_DIRS="/mnt/data /mnt/downloads /mnt/scripts"
ENV_VARS_TABLEAU="Password User"
ENV_VARS_VENDOR="DB2INST1_PASSWORD DBNAME LICENSE"

abort() {
    printf "$@" >&2
    exit 1
}

assert() {
    "$@" || abort '%s: Assertion failed: %s\n' "$0" "$*"
}

docker_run_sap_hana() {
    set_options
    docker run $opts --privileged=true $image
}

get_env_vars() {
    case ${image%:*} in
	(*/tableau-ibm-db2-*|tableau-ibm-db2-*)
	    printf '%s\n' $ENV_VARS_TABLEAU
	    ;;
	(*)
	    printf '%s\n' $ENV_VARS_VENDOR
	    ;;
    esac
}

get_host_dir() {
    case "$1" in
	(/mnt/data)
	    printf '%s\n' "$PWD/data"
	    ;;
	(/mnt/downloads)
	    printf '%s\n' "$PWD/downloads"
	    ;;
	(/mnt/scripts)
	    printf '%s\n' "$PWD/scripts"
	    ;;
    esac
}

parse_arguments() {
    image=$1
    shift

    if [ $# -gt 0 ]; then
	user_opts="$@"
    else
	user_opts="-d"
    fi
}

set_options() {
    env_opts=
    port_opts=
    vol_opts=

    for var in $(get_env_vars); do
	eval value=\${$var-}
	env_opts="${env_opts:+$env_opts }-e $var=$value"
    done

    for port in $PORTS; do
	port_opts="${port_opts:+$port_opts }-p $port:$port"
    done

    for container_dir in $CONTAINER_DIRS; do
	host_dir=$(get_host_dir $container_dir)

	if [ -d "$host_dir" ]; then
	    vol_opts="${vol_opts:+$vol_opts }-v $host_dir:$container_dir"
	fi
    done

    opts="$env_opts ${port_opts:+$port_opts }${vol_opts:+$vol_opts }$user_opts"
}

usage_error() {
    printf "$@" >&2
    exit 2
}

script=$(basename "$0")

case "$0" in
    (*/*)
	script_dir=$(cd "$(dirname "$0")" && pwd)
	;;
    (*)
	script_dir=
	;;
esac

script_prefix=${script_dir:+$script_dir/}

. "${script_prefix}ibm-db2-config.sh"

if [ $# -lt 1 ]; then
    usage_error '%s: Not enough arguments\n' "$script"
fi

if [ -r $HOME/.env-ibm-db2 ]; then
    . $HOME/.env-ibm-db2
fi

if [ -r $HOME/${ENV_FILE-.env} ]; then
    . $HOME/${ENV_FILE-.env}
fi

parse_arguments "$@"
docker_run_sap_hana