TSK-1619: added Dockerfile for our db2 image

.github/workflows/continuous-integration.yml

@@ -270,7 +270,7 @@ jobs:
           name: ${{ env.ARTIFACTS_TASKANA_JARS_NAME }}
           path: ${{ env.ARTIFACTS_TASKANA_JARS_PATH }}
       - name: Prepare database
-        run: ci/prepare_db.sh ${{ matrix.database }}
+        run: docker-databases/prepare_db.sh ${{ matrix.database }}
       - name: Generate JavaDoc for Rest Documentation
         if: matrix.module == 'taskana-simplehistory-rest-spring'
         run: ./mvnw -B validate -pl :taskana-rest-spring
@@ -312,7 +312,7 @@ jobs:
           name: ${{ env.ARTIFACTS_TASKANA_JARS_NAME }}
           path: ${{ env.ARTIFACTS_TASKANA_JARS_PATH }}
       - name: Start database
-        run: ci/prepare_db.sh POSTGRES_10
+        run: docker-databases/prepare_db.sh POSTGRES_10
       - name: Test
         run: ./mvnw -B verify -f rest/taskana-rest-spring-example-wildfly
       - name: Cancel workflow

.gitignore

@@ -67,3 +67,6 @@ Thumbs.db
 
 # java-format
 .java-format-cache
+
+# DB2 database
+db.tar.gz

docker-databases/db2_11-1/Dockerfile

@@ -0,0 +1,74 @@
+#  Build docker image of db2 express-C v10.5 FP5 (64bit)
+#
+# # Authors:
+#   * Leo (Zhong Yu) Wu       <leow@ca.ibm.com>
+#
+# Copyright 2015, IBM Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM centos:7
+
+###############################################################
+#
+#               System preparation for DB2
+#
+###############################################################
+
+RUN groupadd db2iadm1 && useradd -G db2iadm1 db2inst1
+
+# Required packages
+RUN yum install -y \
+    vi \
+    sudo \
+    passwd \
+    pam \
+    pam.i686 \
+    ncurses-libs.i686 \
+    file \
+    libaio \
+    libstdc++-devel.i686 \
+    numactl-libs \
+    which \
+    glibc-locale-source \
+    glibc-langpack-de \
+    && yum clean all
+
+RUN localedef -i de_DE -c -f UTF-8 \
+    -A /usr/share/locale/locale.alias de_DE.UTF-8 && echo "LANG=de_DE.UTF-8" > /etc/locale.conf
+RUN echo "export LANG=de_DE.UTF-8" >> /etc/profile
+
+COPY ./db.tar.gz /tmp/expc.tar.gz
+
+RUN cd /tmp && tar xf expc.tar.gz \
+    && su - db2inst1 -c "/tmp/expc/db2_install -y -b /home/db2inst1/sqllib" \
+    && echo '. /home/db2inst1/sqllib/db2profile' >> /home/db2inst1/.bash_profile \
+    && rm -rf /tmp/db2* && rm -rf /tmp/expc* \
+    && sed -ri  's/(ENABLE_OS_AUTHENTICATION=).*/\1YES/g' /home/db2inst1/sqllib/instance/db2rfe.cfg \
+    && sed -ri  's/(RESERVE_REMOTE_CONNECTION=).*/\1YES/g' /home/db2inst1/sqllib/instance/db2rfe.cfg \
+    && sed -ri 's/^\*(SVCENAME=db2c_db2inst1)/\1/g' /home/db2inst1/sqllib/instance/db2rfe.cfg \
+    && sed -ri 's/^\*(SVCEPORT)=48000/\1=50000/g' /home/db2inst1/sqllib/instance/db2rfe.cfg
+
+RUN su - db2inst1 -c "db2start && db2set DB2COMM=TCPIP \
+      && db2set -g -null DB2_COMPATIBILITY_VECTOR \
+      && db2 create database TSKDB using codeset utf-8 territory en-us \
+      collate using 'CLDR181_LDE_AS_CX_EX_FX_HX_NX_S3' PAGESIZE 32 K" \
+    && su - db2inst1 -c "db2stop force" \
+    && cd /home/db2inst1/sqllib/instance \
+    && ./db2rfe -f ./db2rfe.cfg
+
+COPY entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["start"]
+
+EXPOSE 50000

docker-databases/db2_11-1/README.md

@@ -0,0 +1,5 @@
+# How to build the IBM DB2 Express-C docker image
+
+1. Download the database from either [IBM directly](https://www-01.ibm.com/marketing/iwm/iwm/web/pickUrxNew.do?source=swg-db2expressc) or from our [NT Onedrive](https://msnovatec-my.sharepoint.com/:f:/g/personal/mzo_novatec-gmbh_de/EuxS9esUxppHn-1Mobq7UT4BVWbwXga585q7o3h6hzAC6g?e=PK3KdM) (NT employees only)
+2. Name that tar file `db.tar.gz` and place it in this folder
+3. Execute a docker build command

docker-databases/db2_11-1/entrypoint.sh

@@ -0,0 +1,105 @@
+#!/bin/bash
+#
+#   Initialize DB2 instance in a Docker container
+#
+# # Authors:
+#   * Leo (Zhong Yu) Wu       <leow@ca.ibm.com>
+#   * Boris Manojlovic        <boris@steki.net>
+#
+# Copyright 2015, IBM Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+pid=0
+
+function log_info {
+ echo -e $(date '+%Y-%m-%d %T')"\e[1;32m $@\e[0m"
+}
+
+function log_error {
+ echo -e >&2 $(date +"%Y-%m-%d %T")"\e[1;31m $@\e[0m"
+}
+
+function stop_db2 {
+  log_info "stopping database engine"
+  su - db2inst1 -c "db2stop force"
+}
+
+function start_db2 {
+  log_info "starting database engine"
+  su - db2inst1 -c "db2start"
+}
+
+function restart_db2 {
+  # if you just need to restart db2 and not to kill this container
+  # use docker kill -s USR1 <container name>
+  kill ${spid}
+  log_info "Asked for instance restart doing it..."
+  stop_db2
+  start_db2
+  log_info "database instance restarted on request"
+}
+
+function terminate_db2 {
+  kill ${spid}
+  stop_db2
+  if [ $pid -ne 0 ]; then
+    kill -SIGTERM "$pid"
+    wait "$pid"
+  fi
+  log_info "database engine stopped"
+  exit 0 # finally exit main handler script
+}
+
+trap "terminate_db2"  SIGTERM
+trap "restart_db2"   SIGUSR1
+
+if [ ! -f ~/db2inst1_pw_set ]; then
+  (echo "db2inst1-pwd"; echo "db2inst1-pwd") | passwd db2inst1 > /dev/null  2>&1
+  if [ $? != 0 ];then
+    log_error "Changing password for db2inst1 failed"
+    exit 1
+  fi
+  touch ~/db2inst1_pw_set
+fi
+
+if [ ! -f ~/db2_license_accepted ];then
+  if [ -z "$LICENSE" ];then
+     log_error "error: LICENSE not set"
+     log_error "Did you forget to add '-e LICENSE=accept' ?"
+     exit 1
+  fi
+
+  if [ "${LICENSE}" != "accept" ];then
+     log_error "error: LICENSE not set to 'accept'"
+     log_error "Please set '-e LICENSE=accept' to accept License before use the DB2 software contained in this image."
+     exit 1
+  fi
+  touch ~/db2_license_accepted
+fi
+
+if [[ $1 = "start" ]]; then
+  log_info "Initializing container"
+  start_db2
+  log_info "Database db2diag log following"
+  tail -f ~db2inst1/sqllib/db2dump/db2diag.log &
+  export pid=${!}
+  while true
+  do
+    sleep 10000 &
+    export spid=${!}
+    wait $spid
+  done
+else
+  exec "$1"
+fi

docker-databases/docker-compose.yml

@@ -1,12 +1,14 @@
 version: '3'
 services:
   taskana-postgres_10:
-    build: .
+    build: postgres_10
     ports:
       - 5102:5432
     environment:
       - POSTGRES_PASSWORD=postgres
   taskana-db2_11-1:
     image: taskana/db2:11.1
+    environment:
+      - LICENSE=accept
     ports:
       - 5101:50000

docker-databases/prepare_db.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 set -e #fail fast
+trap "exit 1" TERM
+export TOP_PID=$$
 
 #H Usage:
 #H %FILE% -h | %FILE% --help
@@ -39,7 +41,7 @@ function mapDBToDockerComposeServiceName() {
       echo "taskana-postgres_10"
       ;;
     *)
-      echo "unknown database '$1'" >&2 && exit 1
+      echo "unknown database '$1'" >&2 && kill -s TERM $TOP_PID
   esac
 }
 
@@ -71,8 +73,11 @@ function main() {
     echo 'schemaName=taskana' >> $propFile
     ;;
   stop)
-    docker-compose -f $scriptDir/docker-compose.yml rm -f -s -v "$(mapDBToDockerComposeServiceName "$2")"
-    
+    # this variable is necessary, so that the script can terminate properly
+    # when the provided database name does not match. PLEASE DO NOT INLINE!
+    local composeServiceName="$(mapDBToDockerComposeServiceName "$2")"
+    docker-compose -f $scriptDir/docker-compose.yml rm -f -s -v $composeServiceName
+
     [[ -f "$propFile" ]] && rm "$propFile"
     ;;
   *)