Handle database configuration
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Dockerfile
15
Dockerfile
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@ -1,5 +1,6 @@
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FROM ubuntu:16.04
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MAINTAINER Glenn Y. Rolland <glenux@glenux.net>
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FROM debian:bullseye
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LABEL org.opencontainers.image.authors="Glenn Y. Rolland <glenux@glenux.net>"
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LABEL net.glenux.image.version="4.4.1"
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# Some ENV variables
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ENV PATH="/mattermost/bin:${PATH}"
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@ -8,17 +9,21 @@ ENV MM_VERSION=4.4.1
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# Install some needed packages
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RUN apt-get update \
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&& apt-get -y --no-install-recommends install \
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curl jq netcat ca-certificates \
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&& rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin
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curl jq netcat ca-certificates \
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&& rm -rf /var/lib/apt/lists/* \
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/var/cache/apt/archives/*.deb \
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/var/cache/apt/archives/partial/*.deb \
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/var/cache/apt/*.bin
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# Get Mattermost
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RUN mkdir -p /mattermost/data \
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&& curl https://releases.mattermost.com/$MM_VERSION/mattermost-team-$MM_VERSION-linux-amd64.tar.gz | tar -xvz \
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; cp /mattermost/config/config.json /config.json.save \
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&& cp /mattermost/config/config.json /config.json.save \
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&& rm -rf /mattermost/config/config.json
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# Configure entrypoint and command
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COPY entrypoint.sh /
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COPY parseurl.py /
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ENTRYPOINT ["/entrypoint.sh"]
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WORKDIR /mattermost/bin
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CMD ["platform"]
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100
entrypoint.sh
Normal file
100
entrypoint.sh
Normal file
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@ -0,0 +1,100 @@
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#!/bin/bash
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set -u
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set -e
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# Function to generate a random salt
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generate_salt() {
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tr -dc 'a-zA-Z0-9' < /dev/urandom | fold -w 48 | head -n 1
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}
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# Update configuration file according to value
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config_set() {
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local value="$1"
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local file="$2"
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jq "$value" "$file" > "$file.tmp"
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mv "$file.tmp" "$file"
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}
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# Parse environment variables
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chmod +x /parseurl.py
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/parseurl.py MM_DB_
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eval "$(/parseurl.py MM_DB_)"
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# Read environment variables or set default values
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DB_HOST=${DB_HOST:-db}
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DB_PORT_NUMBER=${DB_PORT_NUMBER:-5432}
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MM_USERNAME=${MM_USERNAME:-mmuser}
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MM_PASSWORD=${MM_PASSWORD:-mmuser_password}
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MM_DBNAME=${MM_DBNAME:-mattermost}
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MM_CONFIG=${MM_CONFIG:-/mattermost/config/config.json}
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if [ "${1:0:1}" = '-' ]; then
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set -- platform "$@"
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fi
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if [ "$1" = 'platform' ]; then
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# Check CLI args for a -config option
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for ARG in "$@";
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do
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case "$ARG" in
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-config=*)
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MM_CONFIG=${ARG#*=};;
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esac
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done
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if [ ! -f "$MM_CONFIG" ]
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then
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# If there is no configuration file, create it with some default values
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echo "No configuration file" "$MM_CONFIG"
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echo "Creating a new one"
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# Copy default configuration file
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cp /config.json.save "$MM_CONFIG"
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# Substitute some parameters with jq
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config_set '.ServiceSettings.ListenAddress = ":80"' "$MM_CONFIG"
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config_set '.LogSettings.EnableConsole = false' "$MM_CONFIG"
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config_set '.LogSettings.ConsoleLevel = "INFO"' "$MM_CONFIG"
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config_set '.FileSettings.Directory = "/mattermost/data/"' "$MM_CONFIG"
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config_set '.FileSettings.EnablePublicLink = true' "$MM_CONFIG"
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config_set ".FileSettings.PublicLinkSalt = \"$(generate_salt)\"" "$MM_CONFIG"
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config_set '.EmailSettings.SendEmailNotifications = false' "$MM_CONFIG"
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config_set '.EmailSettings.FeedbackEmail = ""' "$MM_CONFIG"
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config_set '.EmailSettings.SMTPServer = ""' "$MM_CONFIG"
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config_set '.EmailSettings.SMTPPort = ""' "$MM_CONFIG"
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config_set ".EmailSettings.InviteSalt = \"$(generate_salt)\"" "$MM_CONFIG"
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config_set ".EmailSettings.PasswordResetSalt = \"$(generate_salt)\"" "$MM_CONFIG"
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config_set '.RateLimitSettings.Enable = true' "$MM_CONFIG"
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config_set '.SqlSettings.DriverName = "postgres"' "$MM_CONFIG"
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config_set ".SqlSettings.AtRestEncryptKey = \"$(generate_salt)\"" "$MM_CONFIG"
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else
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echo "Using existing config file" "$MM_CONFIG"
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fi
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# Configure database access
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if [ -z "$MM_SQLSETTINGS_DATASOURCE" ]
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then
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echo -ne "Configure database connection..."
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export MM_SQLSETTINGS_DATASOURCE="postgres://$MM_USERNAME:$MM_PASSWORD@$DB_HOST:$DB_PORT_NUMBER/$MM_DBNAME?sslmode=disable&connect_timeout=10"
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echo OK
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else
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echo "Using existing database connection"
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fi
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# Wait for database to be reachable
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echo "Wait until database $DB_HOST:$DB_PORT_NUMBER is ready..."
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until nc -z "$DB_HOST" "$DB_PORT_NUMBER"
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do
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sleep 1
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done
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# Wait another second for the database to be properly started.
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# Necessary to avoid "panic: Failed to open sql connection pq: the database system is starting up"
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sleep 1
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echo "Starting platform"
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fi
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exec "$@"
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63
parseurl.py
Executable file
63
parseurl.py
Executable file
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@ -0,0 +1,63 @@
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#!/usr/bin/env python
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import sys
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import os
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from urlparse import urlparse
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prefix = sys.argv[1]
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# print os.environ.keys
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uri_str = os.environ['DATABASE_URL']
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uri = urlparse(uri_str)
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db_netloc = uri.netloc
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db_credential = None
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db_username = None
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db_password = None
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db_host = None
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db_port = None
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if db_netloc.find("@") >= 0 :
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tmp_arr1 = db_netloc.split('@')
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db_credential = tmp_arr1[0]
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db_host = tmp_arr1[1]
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if db_credential and db_credential.find(':') >= 0 :
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tmp_arr2 = db_credential.split(':')
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db_username = tmp_arr2[0]
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db_password = tmp_arr2[1]
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if db_host and db_host.find(':') >= 0 :
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tmp_arr3 = db_host.split(':')
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db_host = tmp_arr3[0]
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db_port = tmp_arr3[1]
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db_path = uri.path
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db_scheme = uri.scheme
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db_query = uri.query
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db_fragment = uri.fragment
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if db_scheme :
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print(prefix + 'SCHEME=' + db_scheme)
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if db_username :
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print(prefix + 'USERNAME=' + db_username)
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if db_password :
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print(prefix + 'PASSWORD=' + db_password)
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if db_host :
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print(prefix + 'HOST=' + db_host)
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if db_port :
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print(prefix + 'PORT=' + db_port)
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if db_path :
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print(prefix + 'NAME=' + db_path[1:])
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if db_query :
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print(prefix + 'QUERY=' + db_query)
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if db_fragment :
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print(prefix + 'FRAGMENT=' + db_fragment)
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