Oracle Linux Container LXC 7.3 on Oracle Linux 7.3

This article explains how to create a Linux Containers 7.3  LXC on Oracle Linux 7.x, while creating an interface network as a bridge with a dedicated network address.


  1. Install the pre-requis LXC container:
  2. Creation of Oracle Linux container 7u3.
  3. Set up a static IP address for Linux Container:

1. Install the pre-requis:

We have as a host, ORACLE Linux 7.3

# cat /etc/oracle-release
Oracle Linux Server release 7.3

# uname -a
Linux 3.8.13-118.16.3.el7uek.x86_64 #2 SMP Wed Feb 8 17:43:34 PST 2017 x86_64 x86_64 x86_64 GNU/Linux

a. Install the dedicated packages of the Linux containers.

Note: If  you want to Create the containers LXC on a File system BTRFS, then install the package btrfs-progs.

# yum install btrfs-progs lxc -y

Note: If you want to Create the containers LXC on a File system like XFS, then just install the package LXC because the File system XFS is built in Oracle Linux 7.x

# yum install lxc -y

b. Creation of the Filesystem container XFS.

Note: We can create btrfs file system on the disk and to use his feautures on cloning existing LXC container, but in my tutorial, I am going to use the filesystem XFS.

# fdisk /dev/sdb
# mkfs.xfs /dev/sdb1
# mount /dev/sdb1 /container

c. Sheck the Oracle Linux container templates:

The templates are located as script under the folder: /usr/share/lxc/templates

# ls /usr/share/lxc/templates
lxc-alpine     lxc-busybox  lxc-debian    lxc-gentoo        lxc-oracle  lxc-ubuntu
lxc-altlinux   lxc-centos   lxc-download  lxc-openmandriva  lxc-plamo   lxc-ubuntu-cloud
lxc-archlinux  lxc-cirros   lxc-fedora    lxc-opensuse      lxc-sshd

2. Creation of Oracle Linux container LXC 7u3:

Linux container creation requires the yum repository be available. I am going to use the public YUM repository.

  • container name:
  • template name: -t oracle
  • release name: –release 7.3

# lxc-create -n -t oracle -- --release=7.3
Rebuilding rpm database
Patching container rootfs /container/ for Oracle Linux 7.3
Configuring container for Oracle Linux 7.3
Added container user:oracle password:oracle
Added container user:root password:root
Container : /container/
Config    : /container/
Network   : eth0 (veth
veth) on lxcbr0

Note: After the creation of the Oracle Linux template the password of the user root is root and the user oracle is oracle as a password.

a. Verify the Configuration file of our container:

#cat /container/
# Template used to create this container: /usr/share/lxc/templates/lxc-oracle
# Parameters passed to the template: --release=7.3
# For additional config options, please look at lxc.container.conf(5) = veth = lxcbr0 = up = 00:16:3e:06:92:09
lxc.rootfs = /container/
# Common configuration
lxc.include = /usr/share/lxc/config/oracle.common.conf
# Container configuration for Oracle Linux 7.3
lxc.arch = x86_64
lxc.utsname =
lxc.cap.drop = sys_resource
# Networking = eth0 = 1500


b. Start / stop the container:

The option –name or -n to specify the container name.

lxc-start --name
# lxc-stop --name
# lxc-autostart -n

c. Connect to the container:

Method 1: Using the tool lxc-attach

# lxc-attach  -n

Method 2: Using the SSH connection after configuring the network, check next step.

3.  Set up a static IP address for Linux Container:

Notelxcbr0 – network bridge which was created automatically when the lxc tools have been installed.

a. I have chaged the bridge ip address to on /etc/sysconfig/lxc-net

#grep ^LXC /etc/sysconfig/lxc-net

b. Change the configuration file of the container: /container/

# Networking = veth = lxcbr0 = up = eth0 = 00:16:3e:3b:b8:50 = 1500 =

c. Adding an other bridge interface lxcbr1:

# brctl addbr lxcbr1
# ifconfig lxcbr1
# ifconfig lxcbr1
lxcbr1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        inet6 fe80::a80d:ceff:feb9:f310  prefixlen 64  scopeid 0x20<link>
        ether aa:0d:ce:b9:f3:10  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 19  bytes 2957 (2.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


Creation of Oracle Linux 7.x container on the host Oracle Linux 7.3 and configuring the network connection.


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