Configuring your RHEL 8.3 VM
| Purchase Subscription | ||
| Subscription Manager | https://access.redhat.com/solutions/253273 [obrienlabs@localhost ~]$ subscription-manager register --username m*** --password **** --auto-attach Registering to: subscription.rhsm.redhat.com:443/subscription The system has been registered with ID: 8ea341e9-**-924e868305c3 The registered system name is: localhost.localdomain Installed Product Current Status: Product Name: Red Hat Enterprise Linux for x86_64 Status: Subscribed sudo yum update | |
| Note Pool ID for OpenShift | We are going to run OpenShift OCP on AWS. subscription username, password, Pool ID sudo subscription-manager list --available 0a...2e | |
| add account to sudoers | su usermod -aG wheel <account> reboot now | |
| update Java from 8 to 11 | sudo yum install java-11-openjdk-devel sudo alternatives --config java | |
| flip on network | sudo systemctl restart NetworkManager.service |
Installing Podman as an alternative to Docker on Redhat RHEL 8
Podman will run as non-root
[obrienlabs@localhost ~]$ docker version bash: docker: command not found... Install package 'podman-docker' to provide command 'docker'? [N/y] y * Waiting in queue... * Loading list of packages.... The following packages have to be installed: conmon-2:2.0.20-2.module+el8.3.0+8221+97165c3f.x86_64 OCI container runtime monitor container-selinux-2:2.144.0-1.module+el8.3.0+8221+97165c3f.noarch SELinux policies for container runtimes containernetworking-plugins-0.8.6-2.module+el8.3.0+8221+97165c3f.x86_64 CNI network plugins containers-common-1:1.1.1-3.module+el8.3.0+8221+97165c3f.x86_64 Configuration files for working with image signatures criu-3.14-2.module+el8.3.0+8221+97165c3f.x86_64 Tool for Checkpoint/Restore in User-space fuse-overlayfs-1.1.2-3.module+el8.3.0+8221+97165c3f.x86_64 FUSE overlay+shiftfs implementation for rootless containers fuse3-libs-3.2.1-12.el8.x86_64 File System in Userspace (FUSE) v3 libraries libnet-1.1.6-15.el8.x86_64 C library for portable packet creation and injection libslirp-4.3.1-1.module+el8.3.0+8221+97165c3f.x86_64 A general purpose TCP-IP emulator libvarlink-18-3.el8.x86_64 Varlink C Library podman-2.0.5-5.module+el8.3.0+8221+97165c3f.x86_64 Manage Pods, Containers and Container Images podman-catatonit-2.0.5-5.module+el8.3.0+8221+97165c3f.x86_64 A signal-forwarding process manager for containers podman-docker-2.0.5-5.module+el8.3.0+8221+97165c3f.noarch Emulate Docker CLI using podman protobuf-c-1.3.0-4.el8.x86_64 C bindings for Google's Protocol Buffers runc-1.0.0-68.rc92.module+el8.3.0+8221+97165c3f.x86_64 CLI for running Open Containers slirp4netns-1.1.4-2.module+el8.3.0+8221+97165c3f.x86_64 slirp for network namespaces Proceed with changes? [N/y] y Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg. [obrienlabs@localhost ~]$ sudo yum install podman-docker [sudo] password for obrienlabs: Updating Subscription Management repositories. Last metadata expiration check: 2:12:30 ago on Sun 13 Dec 2020 01:27:01 PM PST. Package podman-docker-2.0.5-5.module+el8.3.0+8221+97165c3f.noarch is already installed. Dependencies resolved. Nothing to do. Complete! [obrienlabs@localhost ~]$ docker version Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg. Version: 2.0.5 API Version: 1 Go Version: go1.14.7 Built: Wed Sep 23 09:18:02 2020 OS/Arch: linux/amd64 [obrienlabs@localhost ~]$ docker ps Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg. CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
