如何获得一个RAC Oracle数据库(从Github - oracle/docker-images) - 本地版
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环境
一台笔记本电脑，Windows操作系统，安装了VirtualBox，Vagrant，Github。
目标
操作系统Oracle Linux 7，运行容器数据库，数据库企业版，RAC，版本为19.3.0，实例名为ORCLCDB，带一个可插拔数据库orclpdb1。两个RAC节点均运行于同一主机。
创建Linux操作系统
克隆项目以获得Linux Vagrant Box：
PS D:\DB> git clone https://github.com/oracle/vagrant-boxes.git
安装磁盘扩展插件：
vagrant plugin install vagrant-disksize
在Vagrantfile中将内存由默认的2048改为8192，然后修改根盘的大小为80G。如下:
...
config.vm.box = "ol7-latest"
config.disksize.size = "80GB" config.vm.box_url = "https://yum.oracle.com/boxes/oraclelinux/latest/ol7-latest.box" config.vm.define NAME config.vm.box_check_update = false # change memory size config.vm.provider "virtualbox" do |v| v.memory = 8192 v.name = NAME end ...然后创建虚机（Oracle Linux 7）。耗时7分42秒，我的环境一般在7分钟左右。
PS E:\DB\vagrant-boxes\OracleLinux\7> vagrant up
启动VM后，磁盘是64G，但根分区仍是32G:
$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs 3.8G 0 3.8G 0% /dev/shm
tmpfs 3.8G 8.5M 3.8G 1% /run
tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/mapper/vg_main-lv_root 32G 1.7G 31G 6% /
/dev/sda1 497M 125M 373M 26% /boot
vagrant 1.9T 1.1T 753G 60% /vagrant
tmpfs 771M 0 771M 0% /run/user/1000
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdb 8:16 0 15.6G 0 disk
sda 8:0 0 80G 0 disk
├─sda2 8:2 0 36G 0 part
│ ├─vg_main-lv_swap 252:1 0 4G 0 lvm [SWAP]
│ └─vg_main-lv_root 252:0 0 32G 0 lvm /
└─sda1 8:1 0 500M 0 part /boot
因此需要扩展分区，大致过程如下：
fdisk /dev/sda (n, p, <Enter>, <Enter>, w) -> 产生新分区/dev/sda3
partprobe
pvcreate /dev/sda
vgextend vg_main /dev/sda3
lvextend /dev/vg_main/lv_root /dev/sda3
xfs_growfs /扩容后的空间：
# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs 3.8G 0 3.8G 0% /dev/shm
tmpfs 3.8G 8.5M 3.8G 1% /run
tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/mapper/vg_main-lv_root 76G 1.7G 74G 3% /
/dev/sda1 497M 125M 373M 26% /boot
vagrant 1.9T 1.1T 753G 60% /vagrant
tmpfs 771M 0 771M 0% /run/user/1000
以下操作均登入Linux中运行。
安装Docker
安装Docker，耗时0m49.161s：
sudo yum install -y yum-utils
sudo yum-config-manager --enable ol7_addons
sudo yum install -y docker-engine sudo systemctl start docker sudo systemctl enable docker sudo usermod -aG docker vagrant确认docker安装成功:
$ docker version
Client: Docker Engine - Community
Version: 18.09.8-ol
API version: 1.39
Go version: go1.10.8
Git commit: 76804b7
Built: Fri Sep 27 21:00:18 2019
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 18.09.8-ol
API version: 1.39 (minimum version 1.12)
Go version: go1.10.8
Git commit: 76804b7
Built: Fri Sep 27 20:54:00 2019
OS/Arch: linux/amd64
Experimental: false
Default Registry: docker.io
克隆Github项目
耗时0m31.599s：
sudo yum install -y git
git clone https://github.com/oracle/docker-images.git设置内核参数
docker会从Host OS继承参数，因此需在文件/etc/sysctl.conf中设置以下参数：
fs.file-max = 6815744
net.core.rmem_max = 4194304
net.core.rmem_default = 262144
net.core.wmem_max = 1048576
net.core.wmem_default = 262144 net.core.rmem_default = 262144使其生效：
sudo sysctl -a
sudo sysctl -p创建虚拟网络
docker network create --driver=bridge --subnet=172.16.1.0/24 rac_pub1_nw
docker network create --driver=bridge --subnet=192.168.17.0/24 rac_priv1_nw
查看状态：
$ docker network ls
NETWORK ID NAME DRIVER SCOPE
aac5636fe8fc bridge bridge local
051a1439f036 host host local
1a9007862a18 none null local
fe35e54e1aa0 rac_priv1_nw bridge local
0c6bdebeab78 rac_pub1_nw bridge local
配置实时模式
RAC的某些进程需要运行在实时模式，因此需要在文件/etc/sysconfig/docker中添加以下：
OPTIONS='--selinux-enabled --cpu-rt-runtime=950000'
使其生效：
sudo systemctl daemon-reload
sudo systemctl stop docker
sudo systemctl start docker
SELINUX 配置为 permissive模式（/etc/selinux/config），过程略。
然后重启实例使得SELINUX生效。
此时的空间状态：
$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs 3.8G 0 3.8G 0% /dev/shm
tmpfs 3.8G 8.5M 3.8G 1% /run
tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/mapper/vg_main-lv_root 76G 2.1G 74G 3% /
/dev/sda1 497M 125M 373M 26% /boot
vagrant 1.9T 1.1T 753G 60% /vagrant
tmpfs 771M 0 771M 0% /run/user/1000将安装文件拷贝到目录
耗时真的看运气，有时7分钟，最近一次1分半：
cd docker-images/OracleDatabase/RAC/OracleRealApplicationClusters/dockerfiles/19.3.0
cp /vagrant/LINUX.X64_193000_db_home.zip .
cp /vagrant/LINUX.X64_193000_grid_home.zip . 此时的空间状态：
$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs 3.8G 0 3.8G 0% /dev/shm
tmpfs 3.8G 8.5M 3.8G 1% /run
tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/mapper/vg_main-lv_root 76G 7.6G 68G 11% /
/dev/sda1 497M 125M 373M 26% /boot
vagrant 1.9T 1.1T 745G 61% /vagrant
tmpfs 771M 0 771M 0% /run/user/1000构建Docker Install Image
这一步最重要的任务就是拷贝介质和配置脚本，还有从网络下载OS更新。然后安装GI和数据库。
执行以下命令开始构建：
$ cd docker-images/OracleDatabase/RAC/OracleRealApplicationClusters/dockerfiles
$ ls
12.2.0.1 18.3.0 19.3.0 buildDockerImage.sh
$ time ./buildDockerImage.sh -v 19.3.0如果空间不够，会报错：
...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! checkSpace.sh: ERROR - There is not enough space available in the docker container. checkSpace.sh: The container needs at least 35 GB , but only 14 available. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ... There was an error building the image.以下是成功时的完整日志，整个过程耗时58分钟：
$ time ./buildDockerImage.sh -v 19.3.0
Checking if required packages are present and valid...
LINUX.X64_193000_grid_home.zip: OK
LINUX.X64_193000_db_home.zip: OK
========================== DOCKER info: Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 0 Server Version: 18.09.8-ol Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: true Native Overlay Diff: false Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: c4446665cb9c30056f4998ed953e6d4ff22c7c39 runc version: 4bb1fe4ace1a32d3676bb98f5d3b6a4e32bf6c58 init version: fec3683 Security Options: seccomp Profile: default selinux Kernel Version: 4.14.35-1902.6.6.el7uek.x86_64 Operating System: Oracle Linux Server 7.7 OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 7.528GiB Name: ol7-vagrant-rac ID: MS7Y:32TG:TGTF:C3QP:DR4Q:IDG4:RHHS:SQVW:5QWY:U45Z:ZCXK:BDCP Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false Product License: Community Engine Registries: docker.io (secure) ========================== Building image 'oracle/database-rac:19.3.0' ... Sending build context to Docker daemon 5.949GB Step 1/11 : FROM oraclelinux:7-slim Trying to pull repository docker.io/library/oraclelinux ... 7-slim: Pulling from docker.io/library/oraclelinux a316717fc6ee: Pull complete Digest: sha256:c5f3baff726ffd97c7e9574e803ad0e8a1e5c7de236325eed9e87f853a746e90 Status: Downloaded newer image for oraclelinux:7-slim ---> 874477adb545 Step 2/11 : MAINTAINER Paramdeep Saini <[email protected]> ---> Running in a1b3685f3111 Removing intermediate container a1b3685f3111 ---> 8187c15c17ab Step 3/11 : ENV SETUP_LINUX_FILE="setupLinuxEnv.sh" INSTALL_DIR=/opt/scripts GRID_BASE=/u01/app/grid GRID_HOME=/u01/app/19.3.0/grid INSTALL_FILE_1="LINUX.X64_193000_grid_home.zip" GRID_INSTALL_RSP="gridsetup_19c.rsp" GRID_SW_INSTALL_RSP="grid_sw_install_19c.rsp" GRID_SETUP_FILE="setupGrid.sh" FIXUP_PREQ_FILE="fixupPreq.sh" INSTALL_GRID_BINARIES_FILE="installGridBinaries.sh" INSTALL_GRID_PATCH="applyGridPatch.sh" INVENTORY=/u01/app/oraInventory CONFIGGRID="configGrid.sh" ADDNODE="AddNode.sh" DELNODE="DelNode.sh" ADDNODE_RSP="grid_addnode.rsp" SETUPSSH="setupSSH.expect" DOCKERORACLEINIT="dockeroracleinit" GRID_USER_HOME="/home/grid" SETUPGRIDENV="setupGridEnv.sh" ASM_DISCOVERY_DIR="/dev" RESET_OS_PASSWORD="resetOSPassword.sh" MULTI_NODE_INSTALL="MultiNodeInstall.py" DB_BASE=/u01/app/oracle DB_HOME=/u01/app/oracle/product/19.3.0/dbhome_1 INSTALL_FILE_2="LINUX.X64_193000_db_home.zip" DB_INSTALL_RSP="db_sw_install_19c.rsp" DBCA_RSP="dbca_19c.rsp" DB_SETUP_FILE="setupDB.sh" PWD_FILE="setPassword.sh" RUN_FILE="runOracle.sh" STOP_FILE="stopOracle.sh" ENABLE_RAC_FILE="enableRAC.sh" CHECK_DB_FILE="checkDBStatus.sh" USER_SCRIPTS_FILE="runUserScripts.sh" REMOTE_LISTENER_FILE="remoteListener.sh" INSTALL_DB_BINARIES_FILE="installDBBinaries.sh" GRID_HOME_CLEANUP="GridHomeCleanup.sh" ORACLE_HOME_CLEANUP="OracleHomeCleanup.sh" DB_USER="oracle" GRID_USER="grid" FUNCTIONS="functions.sh" COMMON_SCRIPTS="/common_scripts" CHECK_SPACE_FILE="checkSpace.sh" RESET_FAILED_UNITS="resetFailedUnits.sh" SET_CRONTAB="setCrontab.sh" CRONTAB_ENTRY="crontabEntry" EXPECT="/usr/bin/expect" BIN="/usr/sbin" container="true" ---> Running in 01dfaa3cc133 Removing intermediate container 01dfaa3cc133 ---> be15b2094e53 Step 4/11 : ENV INSTALL_SCRIPTS=$INSTALL_DIR/install PATH=/bin:/usr/bin:/sbin:/usr/sbin:$PATH SCRIPT_DIR=$INSTALL_DIR/startup GRID_PATH=$GRID_HOME/bin:$GRID_HOME/OPatch/:/usr/sbin:$PATH DB_PATH=$DB_HOME/bin:$DB_HOME/OPatch/:/usr/sbin:$PATH GRID_LD_LIBRARY_PATH=$GRID_HOME/lib:/usr/lib:/lib DB_LD_LIBRARY_PATH=$DB_HOME/lib:/usr/lib:/lib ---> Running in 7c6a76bc6baf Removing intermediate container 7c6a76bc6baf ---> 1666646716e1 Step 5/11 : COPY $GRID_SW_INSTALL_RSP $INSTALL_GRID_PATCH $SETUP_LINUX_FILE $GRID_SETUP_FILE $INSTALL_GRID_BINARIES_FILE $FIXUP_PREQ_FILE $DB_SETUP_FILE $CHECK_SPACE_FILE $DB_INSTALL_RSP $INSTALL_DB_BINARIES_FILE $ENABLE_RAC_FILE $GRID_HOME_CLEANUP $ORACLE_HOME_CLEANUP $INSTALL_FILE_1 $INSTALL_FILE_2 $INSTALL_SCRIPTS/ ---> aeded06d0a00 Step 6/11 : COPY $RUN_FILE $ADDNODE $ADDNODE_RSP $SETUPSSH $FUNCTIONS $CONFIGGRID $GRID_INSTALL_RSP $DBCA_RSP $PWD_FILE $CHECK_DB_FILE $USER_SCRIPTS_FILE $STOP_FILE $CHECK_DB_FILE $REMOTE_LISTENER_FILE $SETUPGRIDENV $DELNODE $RESET_OS_PASSWORD $MULTI_NODE_INSTALL $SCRIPT_DIR/ ---> b9b139ebda70 Step 7/11 : RUN chmod 755 $INSTALL_SCRIPTS/*.sh && sync && $INSTALL_DIR/install/$CHECK_SPACE_FILE && $INSTALL_DIR/install/$SETUP_LINUX_FILE && $INSTALL_DIR/install/$GRID_SETUP_FILE && $INSTALL_DIR/install/$DB_SETUP_FILE && sed -e '/hard *memlock/s/^/#/g' -i /etc/security/limits.d/oracle-database-preinstall-19c.conf && su $GRID_USER -c "$INSTALL_DIR/install/$INSTALL_GRID_BINARIES_FILE EE $PATCH_NUMBER" && $INVENTORY/orainstRoot.sh && $GRID_HOME/root.sh &&