docker
Table of Contents
Explains what a container is and is not. Creates a container without using the docker commands at 12:17!
- Download alpine lightweight filesystem and unzip into any directory
- Change to that directory
unshare --mount --uts --pid --fork --user --ipc --net --map-root-user chroot /docker/alpine /bin/ash
Demystifying Docker
* Get docker desktop
Docker commands
docker images docker ps docker ps -a docker run -it <image> docker start <image> docker logs -f <image> docker pull exit
ORACLE DOCKERFILES PROJECT
Download LINUX.X86_193000_db_home.zip from https://www.oracle.com/uk/database/technologies/oracle-database-software-downloads.html#19c
Copy/Move to docker/docker-images/OracleDatabase/SingleInstance/dockerfiles/19.3.0
cd docker/docker-images/OracleDatabase/SingleInstance/dockerfiles ./buildDockerImage.sh -v 19.3.0 -e
All you need to create a single Oracle 19c instance using Docker
This is the driving script
# LICENSE UPL 1.0
#
# Copyright (c) 2018, 2020 Oracle and/or its affiliates.
#
# ORACLE DOCKERFILES PROJECT
# --------------------------
# This is the Dockerfile for Oracle Database 19c
#
# REQUIRED FILES TO BUILD THIS IMAGE
# ----------------------------------
# (1) db_home.zip
# Download Oracle Database 19c Enterprise Edition or Standard Edition 2 for Linux x64
# from http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
#
# HOW TO BUILD THIS IMAGE
# -----------------------
# Put all downloaded files in the same directory as this Dockerfile
# Run:
# $ docker build -t oracle/database:19.3.0-${EDITION} .
#
# Pull base image
# ---------------
FROM oraclelinux:7-slim as base
# Labels
# ------
LABEL "provider"="Oracle" \
"issues"="https://github.com/oracle/docker-images/issues" \
"volume.data"="/opt/oracle/oradata" \
"volume.setup.location1"="/opt/oracle/scripts/setup" \
"volume.setup.location2"="/docker-entrypoint-initdb.d/setup" \
"volume.startup.location1"="/opt/oracle/scripts/startup" \
"volume.startup.location2"="/docker-entrypoint-initdb.d/startup" \
"port.listener"="1521" \
"port.oemexpress"="5500"
# Environment variables required for this build (do NOT change)
# -------------------------------------------------------------
ENV ORACLE_BASE=/opt/oracle \
ORACLE_HOME=/opt/oracle/product/19c/dbhome_1 \
INSTALL_DIR=/opt/install \
INSTALL_FILE_1="LINUX.X64_193000_db_home.zip" \
INSTALL_RSP="db_inst.rsp" \
CONFIG_RSP="dbca.rsp.tmpl" \
PWD_FILE="setPassword.sh" \
RUN_FILE="runOracle.sh" \
START_FILE="startDB.sh" \
CREATE_DB_FILE="createDB.sh" \
SETUP_LINUX_FILE="setupLinuxEnv.sh" \
CHECK_SPACE_FILE="checkSpace.sh" \
CHECK_DB_FILE="checkDBStatus.sh" \
USER_SCRIPTS_FILE="runUserScripts.sh" \
INSTALL_DB_BINARIES_FILE="installDBBinaries.sh"
# Use second ENV so that variable get substituted
ENV PATH=$ORACLE_HOME/bin:$ORACLE_HOME/OPatch/:/usr/sbin:$PATH \
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib \
CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
# Copy files needed during both installation and runtime
# -------------
COPY $SETUP_LINUX_FILE $CHECK_SPACE_FILE $INSTALL_DIR/
COPY $RUN_FILE $START_FILE $CREATE_DB_FILE $CONFIG_RSP $PWD_FILE $CHECK_DB_FILE $USER_SCRIPTS_FILE $ORACLE_BASE/
RUN chmod ug+x $INSTALL_DIR/*.sh && \
sync && \
$INSTALL_DIR/$CHECK_SPACE_FILE && \
$INSTALL_DIR/$SETUP_LINUX_FILE && \
rm -rf $INSTALL_DIR
#############################################
# -------------------------------------------
# Start new stage for installing the database
# -------------------------------------------
#############################################
FROM base AS builder
ARG DB_EDITION
# Copy DB install file
COPY --chown=oracle:dba $INSTALL_FILE_1 $INSTALL_RSP $INSTALL_DB_BINARIES_FILE $INSTALL_DIR/
# Install DB software binaries
USER oracle
RUN chmod ug+x $INSTALL_DIR/*.sh && \
sync && \
$INSTALL_DIR/$INSTALL_DB_BINARIES_FILE $DB_EDITION
#############################################
# -------------------------------------------
# Start new layer for database runtime
# -------------------------------------------
#############################################
FROM base
USER oracle
COPY --chown=oracle:dba --from=builder $ORACLE_BASE $ORACLE_BASE
USER root
RUN $ORACLE_BASE/oraInventory/orainstRoot.sh && \
$ORACLE_HOME/root.sh
USER oracle
WORKDIR /home/oracle
HEALTHCHECK --interval=1m --start-period=5m \
CMD "$ORACLE_BASE/$CHECK_DB_FILE" >/dev/null || exit 1
# Define default command to start Oracle Database.
CMD exec $ORACLE_BASE/$RUN_FILE
docker.txt · Last modified: 2020/11/01 14:20 by 127.0.0.1