Oracle Linux 6.5 + oracle-rdbms-server-12cR1-preinstallのRPMが入ったDocker Imageを作成する手順。CentOSイメージをConvertする手順となっている。
完成品は以下にある。（Dockerfile）
https://github.com/yasushiyy/vagrant-docker-oracle12c/blob/master/Dockerfile
CentOSをOracle Linuxに変換するスクリプトが提供されている。既存CentOS6.5のイメージを変換してみることにする。
https://linux.oracle.com/switch/centos/
ここでは、以下にてセットアップしたCoreOS環境を利用している。
https://gist.github.com/yasushiyy/9923d68e4811d458fbe0
CentOS6.5のDocker Imageを入手する。
core@core-01 ~ $ docker pull centos
Pulling repository centos
0c752394b855: Download complete
539c0211cd76: Download complete
511136ea3c5a: Download complete
34e94e67e63a: Download complete
ore@core-01 ~ $ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
centos centos6 0c752394b855 2 days ago 124.1 MB
centos latest 0c752394b855 2 days ago 124.1 MB
centos 6.4 539c0211cd76 14 months ago 300.6 MB
ログインして確認。ここでログアウトするとコンテナが停止してしまうので注意。
core@core-01 ~ $ docker run -i -t centos:centos6 /bin/bash
bash-4.1# cat /etc/centos-release
CentOS release 6.5 (Final)
変換してみる。最後の手順で失敗しているが、これはコンテナの仕様上やむを得ないのではないかと考える。
bash-4.1# curl -O https://linux.oracle.com/switch/centos2ol.sh
bash-4.1# sh centos2ol.sh
Checking for required packages...
Checking your distribution...
:
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
yum-utils noarch 1.1.30-17.el6_5 updates 102 k
Transaction Summary
================================================================================
Install 1 Package(s)
Total download size: 102 k
:
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
grub x86_64 1:0.97-83.0.1.el6 ol6_latest 932 k
grubby x86_64 7.0.15-5.0.2.el6 ol6_latest 43 k
initscripts x86_64 9.03.40-2.0.1.el6_5.1 ol6_latest 940 k
oracle-logos noarch 60.0.14-1.0.1.el6 ol6_latest 12 M
oraclelinux-release-notes x86_64 6Server-11 ol6_latest 77 k
plymouth x86_64 0.8.3-27.0.1.el6 ol6_latest 89 k
Updating:
basesystem noarch 10.0-4.0.1.el6 ol6_latest 4.3 k
Installing for dependencies:
ethtool x86_64 2:3.5-1.4.el6_5 ol6_latest 100 k
iproute x86_64 2.6.32-32.el6_5 ol6_latest 364 k
iptables x86_64 1.4.7-11.0.1.el6 ol6_latest 252 k
iputils x86_64 20071127-17.el6_4.2 ol6_latest 120 k
libdrm x86_64 2.4.45-2.el6 ol6_latest 120 k
libpciaccess x86_64 0.13.1-2.el6 ol6_latest 23 k
plymouth-core-libs x86_64 0.8.3-27.0.1.el6 ol6_latest 88 k
plymouth-scripts x86_64 0.8.3-27.0.1.el6 ol6_latest 30 k
policycoreutils x86_64 2.0.83-19.39.0.1.el6 ol6_latest 648 k
upstart x86_64 0.6.5-13.el6_5.3 ol6_latest 176 k
Transaction Summary
================================================================================
Install 16 Package(s)
Upgrade 1 Package(s)
Total download size: 16 M
:
Complete!
Updating initrd...
FATAL: Could not open '/boot/System.map-3.14.5+': No such file or directory
/sbin/new-kernel-pkg: line 304: /sbin/dracut: No such file or directory
mkinitrd failed
バージョンを確認。
bash-4.1# cat /etc/oracle-release
Oracle Linux Server release 6.5
bash-4.1# cat /etc/yum.repos.d/public-yum-ol6.repo
[ol6_latest]
name=Oracle Linux $releasever Latest ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/latest/$basearch/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
gpgcheck=1
enabled=1
:
幾つか問題があるので修正。
- MAKEDEVがないとエラーになる → MAKEDEVを入れると解消
- locale関連でエラーになる → glibc-commonを再インストールし、/etc/environmentに追記
bash-4.1# yum upgrade
:
ERROR with rpm_check_debug vs depsolve:
MAKEDEV >= 0:3.11 is needed by udev-147-2.51.0.3.el6.x86_64
:
bash-4.1# yum install MAKEDEV
bash-4.1# yum upgrade
bash-4.1# yum reinstall glibc-common
bash-4.1# echo LANG=en_US.utf-8 >> /etc/environment
bash-4.1# echo LC_ALL=en_US.utf-8 >> /etc/environment
vimとoracle-rdbms-server-12cR1-preinstallパッケージを入れる。
bash-4.1# yum install vim-minimal
bash-4.1# yum install oracle-rdbms-server-12cR1-preinstall
現時点でのDockerの仕様上、コンテナ内の /etc/hosts を編集できない。これはDB側ではインストールエラーやTNSエラーの原因となるので、代わりに /tmp/hosts を見るように libnss_files ライブラリのバイナリを書き換える。
https://gist.github.com/lalyos/9525120
bash-4.1# echo 127.0.0.1 localhost localhost.localdomain > /tmp/hosts
bash-4.1# sed -i.bak 's:/etc/hosts:/tmp/hosts:g' /lib64/libnss_files.so.2
DBインストール先ディレクトリと環境変数のセットアップ。
bash-4.1# mkdir /opt/oracle
bash-4.1# mkdir /opt/oraInventory
bash-4.1# mkdir /opt/datafile
bash-4.1# chown oracle:oinstall -R /opt
bash-4.1# cat << 'EOF' >> /home/oracle/.bash_profile
export ORACLE_BASE=/opt/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.1.0/dbhome_1
export ORACLE_SID=corcl
export PATH=$PATH:$ORACLE_HOME/bin
EOF
手順としてはここまで。この手順をDockerfile化して、Docker Hubで自動BUILDすることが可能。
コンテナなのでカーネル系（バージョン、パラメータ）はホスト次第であるため、ホストOS側もOracle Linuxにして、oracle-rdbms-server-12cR1-preinstallを入れておく必要がある。
centos2ol.sh の中身を確認した。
#!/bin/sh
# Script to switch CentOS (or other similar distribution) to the
# Oracle Linux yum repository.
#
# Author: Tim Hill <[email protected]>
#
# Copyright 2012 Oracle, Inc.
#
# 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.
2012年時点の情報である。
set -e
unset CDPATH
yum_url=http://public-yum.oracle.com
[email protected]
bad_packages="centos-release-cr libreport-plugin-rhtsupport yum-rhn-plugin"
removed_packages=“"
ksplice関連の方が作ったのだろうか。
usage() {
echo "Usage: ${0##*/} [OPTIONS]"
echo
echo "OPTIONS"
echo "-h"
echo " Display this help and exit"
exit 1
} >&2
have_program() {
hash "$1" >/dev/null 2>&1
}
dep_check() {
if ! have_program "$1"; then
exit_message "'${1}' command not found. Please install or add it to your PATH and try again."
fi
}
exit_message() {
echo "$1"
echo "For assistance, please email <${contact_email}>."
exit 1
} >&2
restore_repos() {
yum remove -y $new_releases
find . -name 'repo.*' | while read repo; do
destination=`head -n1 "$repo"`
if [ "$destination" ]; then
tail -n+2 "$repo" > "$destination"
fi
done
rm "${reposdir}/${repo_file}"
if [ "$removed_packages" ]; then
yum install -y $removed_packages
fi
exit_message "Could not install Oracle Linux packages.
Your repositories have been restored to your previous configuration."
}
サブルーチン。restore_reposだけ何かやってるが、これはバックアップ戻し用なので、特に確認不要か。
## Start of script
while getopts "h" option; do
case "$option" in
h) usage ;;
*) usage ;;
esac
done
if [ `id -u` -ne 0 ]; then
echo "You must run this script as root."
if [ -x /usr/bin/sudo ]; then
echo "Try running 'sudo ${0}'."
fi
exit 1
fi >&2
スクリプト関連の確認のみ。
echo "Checking for required packages..."
for pkg in rpm yum python curl; do
dep_check "$pkg"
done
(1) rpm, yum, python, curl コマンドが実行可能であることを確認。
echo "Checking your distribution..."
if ! old_release=`rpm -q --whatprovides redhat-release`; then
exit_message "You appear to be running an unsupported distribution."
fi
if [ `echo "$old_release" | wc -l` -ne 1 ]; then
exit_message "Could not determine your distribution because multiple
packages are providing redhat-release:
$old_release
"
fi
case "$old_release" in
redhat-release*) ;;
centos-release*) ;;
sl-release*) ;;
oraclelinux-release*|enterprise-release*)
exit_message "You appear to be already running Oracle Linux."
;;
*) exit_message "You appear to be running an unsupported distribution." ;;
esac
RHEL/CentOS/Scientific Linuxであることを確認。
rhel_version=`rpm -q "$old_release" --qf "%{version}"`
base_packages='basesystem initscripts oracle-logos'
case "$rhel_version" in
6*)
repo_file=public-yum-ol6.repo
repo_name=ol6_latest
new_releases="oraclelinux-release redhat-release-server"
base_packages="$base_packages oraclelinux-release-notes plymouth grub grubby"
;;
5*)
repo_file=public-yum-el5.repo
repo_name=el5_latest
new_releases="oraclelinux-release enterprise-release"
base_packages="$base_packages enterprise-release-notes"
;;
4*)
exit_message "Support for this version of your distribution is still in progress."
repo_file=public-yum-el4.repo
repo_name=el4_latest
new_releases=enterprise-release
;;
*) exit_message "You appear to be running an unsupported distribution." ;;
esac
4.x/5.x/6.xによって、yum repository先と必須パッケージが変わる。
echo "Looking for yumdownloader..."
if ! have_program yumdownloader; then
yum -y install yum-utils || true
dep_check yumdownloader
fi
(2) yum-utilsがなければインストール。
echo "Finding your repository directory..."
tempdir=`mktemp -d`
cd "$tempdir”
一時ディレクトリを作成。
python > reposdir_list <<EOF
import yum
for dir in yum.YumBase().doConfigSetup(init_plugins=False).reposdir:
print dir
EOF
while read reposdir; do
if [ -d "$reposdir" ]; then
cd "$reposdir"
break;
fi
done < reposdir_list
if [ "$PWD" = "$tempdir" ]; then
exit_message "Could not locate your repository directory.
Tried the following:
`cat reposdir_list`
"
fi
yumレポジトリの一覧を作成。
echo "Downloading Oracle Linux yum repository file..."
if ! curl -O "${yum_url}/${repo_file}"; then
exit_message "Could not download $repo_file from $yum_url.
Are you behind a proxy? If so, make sure the 'http_proxy' environment
variable is set with your proxy address."
fi
(3) .repoファイルのダウンロード。
- 5.x http://public-yum.oracle.com/public-yum-el5.repo
- 6.x http://public-yum.oracle.com/public-yum-ol6.repo
trap restore_repos ERR
異常時のロールバック用。
# Bad packages
echo "Removing unsupported packages..."
for bad_package in $bad_packages; do
if rpm -q $bad_package >/dev/null 2>&1; then
removed_packages="$removed_packages $bad_package"
yum remove $bad_package
fi
done
(4) 不必要なcentos-release-cr libreport-plugin-rhtsupport yum-rhn-pluginパッケージのyum remove。
cd "$tempdir"
echo "Backing up and removing old repository files..."
rpm -ql "$old_release" | grep '\.repo$' > repo_files
while read repo; do
if [ -f "$repo" ]; then
cat - "$repo" > "$repo".disabled <<EOF
# This is a yum repository file that was disabled by
# ${0##*/}, a script to convert CentOS to Oracle Linux.
# Please see $yum_url for more information.
EOF
tmpfile=`mktemp repo.XXXXX`
echo "$repo" | cat - "$repo" > "$tmpfile"
rm "$repo"
fi
done < repo_files
(5) 古いレポジトリのdisable化。
echo "Downloading Oracle Linux release package..."
if ! yumdownloader $new_releases; then
{
echo "Could not download the following packages from $yum_url:"
echo "$new_releases"
echo
echo "Are you behind a proxy? If so, make sure the 'http_proxy' environment"
echo "variable is set with your proxy address."
} >&2
restore_repos
fi
echo "Switching old release package with Oracle Linux..."
rpm -i --force *.rpm
rpm -e --nodeps "$old_release"
# At this point, the switch is completed.
trap - ERR
(6) パッケージの入れ替え。
- rpm -i --force対象
- 5.x oraclelinux-release enterprise-release
- 6.x oraclelinux-release redhat-release-server
- rpm -e --nodeps centos-release
echo "Installing base packages for Oracle Linux..."
if ! yum -y install $base_packages; then
exit_message "Could not install base packages.
Run 'yum upgrade' to manually install them."
fi
(7) 以下のパッケージインストール。
-
5.x
- basesystem
- initscripts
- oracle-logos
- enterprise-release-notes
-
6.x
- basesystem
- initscripts
- oracle-logos
- oraclelinux-release-notes
- plymouth
- grub
- grubby
if [ -x /usr/libexec/plymouth/plymouth-update-initrd ]; then
echo "Updating initrd..."
/usr/libexec/plymouth/plymouth-update-initrd
fi
(8) /usr/libexec/plymouth/plymouth-update-initrd の実行
echo "Installation successful!"
echo "Run 'yum upgrade' to synchronize your installed packages"
echo "with the Oracle Linux repository.”
(9) 最後にyum upgradeすることを推奨。
6.0系においては、まとめると以下となる。
#!/bin/sh
yum install -y curl yum-utils
yum remove -y centos-release-cr libreport-plugin-rhtsupport yum-rhn-plugin
ls -1 /etc/yum.repos.d | while read f
do
mv /etc/yum.repos.d/$f /etc/yum.repos.d/$f.disabled
done
curl -O http://public-yum.oracle.com/public-yum-ol6.repo
mv *.repo /etc/yum.repos.d/
yumdownloader oraclelinux-release redhat-release-server
rpm -i --force *.rpm
rpm -e --nodeps centos-release
rm *.rpm
yum install -y basesystem initscripts oracle-logos oraclelinux-release-notes plymouth grub grubby
/usr/libexec/plymouth/plymouth-update-initrd
yum upgrade -y
でもやはりDocker Hub上のcentos上だとyum upgradeでこけるので、直前にyum install MAKEDEVがあったほうがいい。