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\nHere is how I install the latest Docker version on Oracle Linux 7. You find several blog posts about it which all install ‘docker-engine’. But things move fast in this agile world and docker package name has changed. The Community Edition is now ‘docker-ce’ and you want this one to run the latest version.
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\nI’m on OEL 7.4 but should also wotj on RHEL 7:
[root@VM188 yum]# cat /etc/oracle-release\nOracle Linux Server release 7.4If you enable [ol7_addons] you can install ‘docker-engine:’
\n\n# yum-config-manager --enable ol7_addons\n# yum info docker-engine\nLoaded plugins: ulninfo\nAvailable Packages\nName : docker-engine\nArch : x86_64\nVersion : 17.06.2.ol\nRelease : 1.0.1.el7\nSize : 21 M\nRepo : ol7_addons/x86_64\nSummary : The open-source application container engine\nURL : https://dockerproject.org\nLicense : ASL 2.0\nDescription : Docker is an open source project to build, ship and run any application as a\n : lightweight container.\nBut forget it. That’s 17.06 which is 6 months old. You should consider Docker as a puppy. 6 month in puppy’s years is like 3 human years. So many changes happened.
\nYou can remove all those old things:
\n\n# yum remove docker docker-common docker-selinux docker-engine\nI’ve not found ‘docker-ce’ on OL7 repositories, as only the Enterprise Edition is there. Then I added the CentOS repo (with yum-config-manager that you can get with yum-utils if you don’t have it already):
\n\nyum -y install yum-utils \nyum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo\nOnce done, I’ve just installed Docker Community Edition with:
\n\nyum -y install docker-ce\nAnd, at that time I got the version 17.12 easily:
\n\n[root@VM188 ~]# yum info docker-ce\nLoaded plugins: ulninfo\nInstalled Packages\nName : docker-ce\nArch : x86_64\nVersion : 17.12.0.ce\nRelease : 1.el7.centos\nSize : 123 M\nRepo : installed\nFrom repo : docker-ce-stable\nSummary : The open-source application container engine\nURL : https://www.docker.com\nLicense : ASL 2.0\nDescription : Docker is an open source project to build, ship and run any application as a\n : lightweight container.\n...\nBut now there’s a new version available:
\n\nAvailable Packages\nName : docker-ce\nArch : x86_64\nVersion : 18.03.0.ce\nRelease : 1.el7.centos\nSize : 35 M\nRepo : docker-ce-stable/x86_64\nSummary : The open-source application container engine\nURL : https://www.docker.com\nLicense : ASL 2.0\nDescription : Docker is an open source project to build, ship and run any application as a\n : lightweight container.\nThe problem is that if you want to install docker-ce in this latest version, you will now get:
\n\nResolving Dependencies\n--> Running transaction check\n---> Package docker-ce.x86_64 0:18.03.0.ce-1.el7.centos will be installed\n--> Processing Dependency: pigz for package: docker-ce-18.03.0.ce-1.el7.centos.x86_64\n--> Finished Dependency Resolution\nError: Package: docker-ce-18.03.0.ce-1.el7.centos.x86_64 (docker-ce-stable)\n Requires: pigz\n You could try using --skip-broken to work around the problem\n** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:\n2:microcode_ctl-2.1-22.5.0.3.el7_4.x86_64 has missing requires of kernel\n(Ok Google, this is what you need to index…)
\nStarting from version 18.02 there’s a new dependency on ‘pigz’ for parallel gzip.
\nTo get this ‘pigz’ package from the OL7 repository you need to enable EPEL in /etc/yum.repos.d/public-yum-ol7.repo
\n\n[ol7_developer_EPEL]\nname=Oracle Linux $releasever Developement Packages ($basearch)\nbaseurl=http://yum.oracle.com/repo/OracleLinux/OL7/developer_EPEL/$basearch/\ngpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle\ngpgcheck=1\nenabled=1\nYou can install also use:
\nyum-config-manager --enable ol7_developer_EPELNow, I’m able to install the latest docker-ce:
\n\n[root@VM188 yum.repos.d]# yum install docker-ce\nLoaded plugins: ulninfo\nResolving Dependencies\n--> Running transaction check\n---> Package docker-ce.x86_64 0:17.12.0.ce-1.el7.centos will be updated\n---> Package docker-ce.x86_64 0:18.03.0.ce-1.el7.centos will be an update\n--> Processing Dependency: pigz for package: docker-ce-18.03.0.ce-1.el7.centos.x86_64\n--> Running transaction check\n---> Package pigz.x86_64 0:2.3.4-1.el7 will be installed\n--> Finished Dependency Resolution\n \nDependencies Resolved\n \n================================================================================================================================\n Package Arch Version Repository Size\n================================================================================================================================\nUpdating:\n docker-ce x86_64 18.03.0.ce-1.el7.centos docker-ce-stable 35 M\nInstalling for dependencies:\n pigz x86_64 2.3.4-1.el7 ol7_developer_EPEL 80 k\n \nTransaction Summary\n================================================================================================================================\nInstall ( 1 Dependent package)\nUpgrade 1 Package\n \nTotal download size: 35 M\nIs this ok [y/d/N]: y\nYou may wonder why I install Docker on Oracle Linux rather than CentOS. The MOS Doc ID 2216342.1 mentions that Oracle will support customers running Oracle Database (single instance) in Docker containers running on Oracle Linux 7 with UEK4 or Red Hat Enterprise Linux 7.
\nIf you want to validate your Docker install for running Oracle Database, the easiest is to use the image build script provided by Oracle:
\n\ngit clone https://github.com/oracle/docker-images.git\ncd ./docker-images/OracleDatabase/SingleInstance/dockerfiles/\n# download and move linuxx64_12201_database.zip is in 12.2.0.1 subdirectory\nsh buildDockerImage.sh -v 12.2.0.1 -e\nThose are maintained by Gerald Venzl, Oracle product manager for database development, so they are obviously the best way to run Oracle Database on Docker. You can read all related best practices from the same author. Once you have that running, you have validated your environment and you can customize further if you want.
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