Merge pull request #138 from monstermunchkin/issues/134-oracle-linux
Support Oracle Linux
This commit is contained in:
Stéphane Graber
GitHub
commit
8462517742
156
doc/examples/oraclelinux
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156
doc/examples/oraclelinux
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@ -0,0 +1,156 @@
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image:
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distribution: oraclelinux
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release: 7
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source:
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downloader: oraclelinux-http
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url: https://mirror.aarnet.edu.au/pub/oraclelinux
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targets:
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lxc:
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create-message: |
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You just created a {{ image.description }} container.
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config:
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- type: all
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before: 5
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content: |-
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lxc.include = LXC_TEMPLATE_CONFIG/oraclelinux.common.conf
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- type: user
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before: 5
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content: |-
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lxc.include = LXC_TEMPLATE_CONFIG/oraclelinux.userns.conf
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- type: all
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after: 4
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content: |-
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lxc.include = LXC_TEMPLATE_CONFIG/common.conf
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- type: user
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after: 4
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content: |-
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lxc.include = LXC_TEMPLATE_CONFIG/userns.conf
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- type: all
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content: |-
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lxc.arch = {{ image.architecture_kernel }}
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files:
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- name: hostname
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path: /etc/hostname
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generator: hostname
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- name: hosts
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path: /etc/hosts
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generator: hosts
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- name: ifcfg-eth0
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path: /etc/sysconfig/network-scripts/ifcfg-eth0
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generator: dump
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templated: true
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content: |-
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DEVICE=eth0
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BOOTPROTO=dhcp
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ONBOOT=yes
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HOSTNAME=LXC_NAME
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NM_CONTROLLED=no
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TYPE=Ethernet
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MTU=
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DHCP_HOSTNAME=`hostname`
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- name: network
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path: /etc/sysconfig/network
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generator: dump
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templated: true
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content: |-
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NETWORKING=yes
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HOSTNAME=LXC_NAME
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- name: ifcfg-eth0.lxd
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path: /etc/sysconfig/network-scripts/ifcfg-eth0
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generator: template
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content: |-
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DEVICE=eth0
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BOOTPROTO=dhcp
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ONBOOT=yes
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HOSTNAME={{ container.name }}
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NM_CONTROLLED=no
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TYPE=Ethernet
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MTU=
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DHCP_HOSTNAME=`hostname`
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- name: network.lxd
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path: /etc/sysconfig/network
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generator: template
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content: |-
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NETWORKING=yes
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HOSTNAME={{ container.name }}
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- name: lxc-sysinit
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path: /etc/init/lxc-sysinit.conf
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generator: dump
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content: |-
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start on startup
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env container
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pre-start script
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if [ "x$container" != "xlxc" -a "x$container" != "xlibvirt" ]; then
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stop;
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fi
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rm -f /var/lock/subsys/*
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rm -f /var/run/*.pid
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[ -e /etc/mtab ] || ln -s /proc/mounts /etc/mtab
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mkdir -p /dev/shm
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mount -t tmpfs -o nosuid,nodev tmpfs /dev/shm
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initctl start tty TTY=console
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telinit 3
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exit 0
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end script
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releases:
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- 6
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- name: sigpwr.conf
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path: /etc/init/power-status-changed.conf
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generator: dump
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content: |-
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start on power-status-changed
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exec /sbin/shutdown -h now "SIGPWR received"
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releases:
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- 6
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packages:
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manager: yum
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update: true
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cleanup: true
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sets:
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- packages:
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- cronie
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- cronie-noanacron
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- curl
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- dhclient
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- initscripts
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- openssh-clients
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- passwd
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- policycoreutils
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- rootfiles
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- rsyslog
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- vim-minimal
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action: install
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actions:
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- trigger: post-packages
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action: |-
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#!/bin/sh
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set -eux
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# Disable SELinux
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mkdir -p /selinux
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echo 0 > /selinux/enforce
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# Disable loginuid in PAM stack
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sed -i '/^session.*pam_loginuid.so/s/^session/# session/' /etc/pam.d/*
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@ -239,6 +239,7 @@ func (d *Definition) Validate() error {
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"ubuntu-http",
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"sabayon-http",
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"docker-http",
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"oraclelinux-http",
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}
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if !shared.StringInSlice(strings.TrimSpace(d.Source.Downloader), validDownloaders) {
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return fmt.Errorf("source.downloader must be one of %v", validDownloaders)
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185
sources/oraclelinux-http.go
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185
sources/oraclelinux-http.go
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@ -0,0 +1,185 @@
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package sources
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import (
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"syscall"
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"gopkg.in/antchfx/htmlquery.v1"
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"github.com/lxc/distrobuilder/shared"
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)
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// OracleLinuxHTTP represents the Oracle Linux downloader.
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type OracleLinuxHTTP struct {
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majorVersion string
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}
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// NewOracleLinuxHTTP creates a new OracleLinuxHTTP instance.
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func NewOracleLinuxHTTP() *OracleLinuxHTTP {
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return &OracleLinuxHTTP{}
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}
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// Run downloads Oracle Linux.
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func (s *OracleLinuxHTTP) Run(definition shared.Definition, rootfsDir string) error {
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s.majorVersion = definition.Image.Release
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fname := "x86_64-boot.iso"
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baseURL := fmt.Sprintf("%s/OL%s", definition.Source.URL, definition.Image.Release)
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latestUpdate, err := s.getLatestUpdate(baseURL)
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if err != nil {
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return err
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}
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err = shared.DownloadHash(fmt.Sprintf("%s/u%s/x86_64/%s", baseURL, latestUpdate, fname),
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"", nil)
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if err != nil {
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return fmt.Errorf("Error downloading Oracle Linux image: %s", err)
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}
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return s.unpackISO(latestUpdate, filepath.Join(os.TempDir(), fname), rootfsDir)
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}
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func (s *OracleLinuxHTTP) unpackISO(latestUpdate, filePath, rootfsDir string) error {
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isoDir := filepath.Join(os.TempDir(), "distrobuilder", "iso")
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squashfsDir := filepath.Join(os.TempDir(), "distrobuilder", "squashfs")
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roRootDir := filepath.Join(os.TempDir(), "distrobuilder", "rootfs.ro")
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tempRootDir := filepath.Join(os.TempDir(), "distrobuilder", "rootfs")
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os.MkdirAll(isoDir, 0755)
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os.MkdirAll(squashfsDir, 0755)
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os.MkdirAll(roRootDir, 0755)
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defer os.RemoveAll(filepath.Join(os.TempDir(), "distrobuilder"))
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// this is easier than doing the whole loop thing ourselves
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err := shared.RunCommand("mount", "-o", "ro", filePath, isoDir)
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if err != nil {
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return err
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}
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defer syscall.Unmount(isoDir, 0)
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var rootfsImage string
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squashfsImage := filepath.Join(isoDir, "LiveOS", "squashfs.img")
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// The squashfs.img contains an image containing the rootfs, so first
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// mount squashfs.img
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err = shared.RunCommand("mount", "-o", "ro", squashfsImage, squashfsDir)
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if err != nil {
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return err
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}
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defer syscall.Unmount(squashfsDir, 0)
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rootfsImage = filepath.Join(squashfsDir, "LiveOS", "rootfs.img")
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err = shared.RunCommand("mount", "-o", "ro", rootfsImage, roRootDir)
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if err != nil {
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return err
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}
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defer syscall.Unmount(roRootDir, 0)
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// Remove rootfsDir otherwise rsync will copy the content into the directory
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// itself
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err = os.RemoveAll(rootfsDir)
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if err != nil {
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return err
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}
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// Since roRootDir is read-only, we need to copy it to a temporary rootfs
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// directory in order to create the minimal rootfs.
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err = shared.RunCommand("rsync", "-qa", roRootDir+"/", tempRootDir)
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if err != nil {
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return err
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}
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// Setup the mounts and chroot into the rootfs
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exitChroot, err := shared.SetupChroot(tempRootDir, shared.DefinitionEnv{})
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if err != nil {
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return fmt.Errorf("Failed to setup chroot: %s", err)
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}
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err = shared.RunScript(fmt.Sprintf(`
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#!/bin/sh
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set -eux
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version="%s"
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update="%s"
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# Create required files
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touch /etc/mtab /etc/fstab
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# Fetch and install rpm and yum from the Oracle repo
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_rpm=$(curl -s https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64/index.html | grep -Eo '>rpm-[[:digit:]][^ ]+\.rpm<' | tail -1 | tr -d '<>')
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_yum=$(curl -s https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64/index.html | grep -Eo '>yum-[[:digit:]][^ ]+\.rpm<' | tail -1 | tr -d '<>')
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wget https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64/getPackage/${_rpm}
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wget https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64/getPackage/${_yum}
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# There's no OL7 key!
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wget https://oss.oracle.com/ol6/RPM-GPG-KEY-oracle
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rpm -ivh --nodeps "${_rpm}" "${_yum}"
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rpm --import RPM-GPG-KEY-oracle
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# Add repo
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mkdir -p /etc/yum.repos.d
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cat <<- EOF > /etc/yum.repos.d/base.repo
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[base]
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name=Oracle Linux
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baseurl=https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64
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enabled=1
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gpgcheck=1
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gpgkey=file:///RPM-GPG-KEY-oracle
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EOF
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mkdir /rootfs
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yum --installroot=/rootfs -y --releasever=${version} install basesystem oraclelinux-release yum
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rm -rf /rootfs/var/cache/yum
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cp RPM-GPG-KEY-oracle /rootfs
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mkdir -p /rootfs/etc/yum.repos.d
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cat <<- EOF > /rootfs/etc/yum.repos.d/base.repo
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[base]
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name=Oracle Linux
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baseurl=https://yum.oracle.com/repo/OracleLinux/OL${version}/${update}/base/x86_64
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enabled=1
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gpgcheck=1
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gpgkey=file:///RPM-GPG-KEY-oracle
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EOF
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`, s.majorVersion, latestUpdate))
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if err != nil {
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exitChroot()
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return err
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}
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exitChroot()
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return shared.RunCommand("rsync", "-qa", tempRootDir+"/rootfs/", rootfsDir)
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}
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func (s *OracleLinuxHTTP) getLatestUpdate(URL string) (string, error) {
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re := regexp.MustCompile(`^u\d+/$`)
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doc, err := htmlquery.LoadURL(URL)
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if err != nil {
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return "", err
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}
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var latestUpdate string
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for _, a := range htmlquery.Find(doc, "//a/@href") {
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if re.MatchString(a.FirstChild.Data) {
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latestUpdate = a.FirstChild.Data
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}
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}
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if latestUpdate == "" {
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return "", fmt.Errorf("No update found")
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}
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latestUpdate = strings.TrimPrefix(latestUpdate, "u")
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return strings.TrimSuffix(latestUpdate, "/"), nil
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}
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@ -28,6 +28,8 @@ func Get(name string) Downloader {
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return NewSabayonHTTP()
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case "docker-http":
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return NewDockerHTTP()
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case "oraclelinux-http":
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return NewOracleLinuxHTTP()
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}
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return nil
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