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--- centos8_containers [2019/10/05 13:16] – [Packages] rpjday
+++ centos8_containers [2019/10/06 12:32] (current) – [Overview] rpjday
@@ Line 6: / Line 6: @@
   * Using the CRI-O Container Engine
+  * OCI image format, OCI-compatible container engines
   * OpenShift
+  * pods (OpenShift)
+  * Create /etc/containers/nodocker to shut up info msg
 ===== Images =====
@@ Line 24: / Line 27: @@
   * buildah (build OCI-compliant container images)
   * skopeo (copy images to and from registries)
+  * podman-docker
 Dependencies:
@@ Line 31: / Line 35: @@
   * containernetworking-plugins
   * oci-systemd-hook
+  * oci-umount
   * container-selinux
+  * fuse-overlayfs
+  * slirp4netns
+Modules:
+<code>
+$ dnf module info container-tools
+</code>
 ===== Concepts =====
 OCI: Open Container Initiative
-Container use cases:
+==== Use cases ====
   * single-node
   * multi-node (sometimes called "distributed systems")
-Core technologies:
+==== Core technologies ====
   * cgroups
@@ Line 48: / Line 60: @@
   * SELinux
-Commands that can operate //without// a container engine:
+==== Commands ====
   * podman
@@ Line 54: / Line 66: @@
   * skopeo
   * 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>