centos8_containers

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centos8_containers [2019/10/05 13:01] – [Overview] rpjdaycentos8_containers [2019/10/06 12:32] (current) – [Overview] rpjday
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   * Using the CRI-O Container Engine   * Using the CRI-O Container Engine
 +  * OCI image format, OCI-compatible container engines
   * OpenShift   * OpenShift
 +  * pods (OpenShift)
 +  * Create /etc/containers/nodocker to shut up info msg
 +
 +===== Images =====
 +
 +  * ubi8/rhel
 +  * ubi8/rhel-minimal
 +  * ubi8/rhel-init
 +  * ubi8/rhel-rsyslog
 +  * ubi8/support-tools
 +  * ubi8/net-snmp
  
 ===== Packages ===== ===== Packages =====
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 Installed (or to install): Installed (or to install):
  
-  * podman +  * podman (manage containers) 
-  * buildah +  * buildah (build OCI-compliant container images) 
-  * skopeo+  * skopeo (copy images to and from registries) 
 +  * podman-docker
  
 Dependencies: Dependencies:
  
-  * runc+  * runc (runtime client for OCI format containers)
   * containers-common   * containers-common
   * containernetworking-plugins   * containernetworking-plugins
   * oci-systemd-hook   * oci-systemd-hook
 +  * oci-umount
   * container-selinux   * container-selinux
 +  * fuse-overlayfs
 +  * slirp4netns
  
 +Modules:
 +
 +<code>
 +$ dnf module info container-tools
 +</code>
 ===== Concepts ===== ===== Concepts =====
  
 OCI: Open Container Initiative OCI: Open Container Initiative
  
-Container use cases:+==== Use cases ====
  
   * single-node   * single-node
   * multi-node (sometimes called "distributed systems")   * multi-node (sometimes called "distributed systems")
  
-Core technologies:+==== Core technologies ====
  
   * cgroups   * cgroups
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   * SELinux   * SELinux
  
-Commands that can operate //without// a container engine:+==== Commands ====
  
   * podman   * podman
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   * skopeo   * skopeo
   * runc   * runc
 +
 +===== registries.conf =====
 +
 +<code>
 +# The only valid categories are: 'registries.search', 'registries.insecure', 
 +# and 'registries.block'.
 +
 +[registries.search]
 +registries = ['registry.redhat.io', 'quay.io', 'docker.io']
 +
 +# If you need to access insecure registries, add the registry's fully-qualified name.
 +# An insecure registry is one that does not have a valid SSL certificate or only does HTTP.
 +[registries.insecure]
 +registries = []
 +
 +
 +# If you need to block pull access from a registry, uncomment the section below
 +# and add the registries fully-qualified name.
 +#
 +# Docker only
 +[registries.block]
 +registries = []
 +</code>
 +
  • centos8_containers.1570280474.txt.gz
  • Last modified: 2019/10/05 13:01
  • by rpjday