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diff --git a/docs/configuration/container/index.rst b/docs/configuration/container/index.rst new file mode 100644 index 00000000..044e31b8 --- /dev/null +++ b/docs/configuration/container/index.rst @@ -0,0 +1,219 @@ +:lastproofread: 2022-06-10 + +######### +Container +######### + +The VyOS container implementation is based on `Podman<https://podman.io/>` as +a deamonless container engine. + +************* +Configuration +************* + +.. cfgcmd:: set container name <name> image + + Sets the image name in the hub registry + + .. code-block:: none + + set container name mysql-server image mysql:8.0 + + If a registry is not specified, Docker.io will be used as the container + registry unless an alternative registry is specified using + **set container registry <name>** or the registry is included in the image name + + .. code-block:: none + + set container name mysql-server image quay.io/mysql:8.0 + +.. cfgcmd:: set container name <name> allow-host-networks + + Allow host networking in a container. The network stack of the container is + not isolated from the host and will use the host IP. + + The following commands translate to "--net host" when the container + is created + + .. note:: **allow-host-networks** cannot be used with **network** + +.. cfgcmd:: set container name <name> network <networkname> + + Attaches user-defined network to a container. + Only one network must be specified and must already exist. + +.. cfgcmd:: set container name <name> network <networkname> address <address> + + Optionally set a specific static IPv4 or IPv6 address for the container. + This address must be within the named network prefix. + + .. note:: The first IP in the container network is reserved by the engine and cannot be used + +.. cfgcmd:: set container name <name> description <text> + + Set a container description + +.. cfgcmd:: set container name <name> environment <key> value <value> + + Add custom environment variables. + Multiple environment variables are allowed. + The following commands translate to "-e key=value" when the container + is created. + + .. code-block:: none + + set container name mysql-server environment MYSQL_DATABASE value 'zabbix' + set container name mysql-server environment MYSQL_USER value 'zabbix' + set container name mysql-server environment MYSQL_PASSWORD value 'zabbix_pwd' + set container name mysql-server environment MYSQL_ROOT_PASSWORD value 'root_pwd' + +.. cfgcmd:: set container name <name> port <portname> source <portnumber> +.. cfgcmd:: set container name <name> port <portname> destination <portnumber> +.. cfgcmd:: set container name <name> port <portname> protocol <tcp | udp> + + Publish a port for the container. + + .. code-block:: none + + set container name zabbix-web-nginx-mysql port http source 80 + set container name zabbix-web-nginx-mysql port http destination 8080 + set container name zabbix-web-nginx-mysql port http protocol tcp + +.. cfgcmd:: set container name <name> volume <volumename> source <path> +.. cfgcmd:: set container name <name> volume <volumename> destination <path> + + Mount a volume into the container + + .. code-block:: none + + set container name coredns volume 'corefile' source /config/coredns/Corefile + set container name coredns volume 'corefile' destination /etc/Corefile + +.. cfgcmd:: set container name <name> restart [no | on-failure | always] + + Set the restart behavior of the container. + + - **no**: Do not restart containers on exit + - **on-failure**: Restart containers when they exit with a non-zero exit code, retrying indefinitely (default) + - **always**: Restart containers when they exit, regardless of status, retrying indefinitely + +.. cfgcmd:: set container name <name> memory <MB> + + Constrain the memory available to the container. + + Default is 512 MB. Use 0 MB for unlimited memory. + +.. cfgcmd:: set container name <name> device <devicename> source <path> +.. cfgcmd:: set container name <name> device <devicename> destination <path> + + Add a host device to the container. + +.. cfgcmd:: container name <name> cap-add <text> + + Set container capabilities or permissions. + + - **net-admin**: Network operations (interface, firewall, routing tables) + - **net-bind-service**: Bind a socket to privileged ports (port numbers less than 1024) + - **net-raw**: Permission to create raw network sockets + - **setpcap**: Capability sets (from bounded or inherited set) + - **sys-admin**: Administation operations (quotactl, mount, sethostname, setdomainame) + - **sys-time**: Permission to set system clock + +.. cfgcmd:: set container name <name> disable + + Disable a container. + +.. cfgcmd:: set container network <networkname> + + Creates a named container network + +.. cfgcmd:: set container registry <name> + + Adds registry to list of unqualified-search-registries. By default, for any + image that does not include the registry in the image name, Vyos will use + docker.io as the container registry. + + +****************** +Operation Commands +****************** + +.. opcmd:: add container image <containername> + + Pull a new image for container + +.. opcmd:: show container + + Show the list of all active containers. + +.. opcmd:: show container image + + Show the local container images. + +.. opcmd:: show container log <containername> + + Show logs from a given container + +.. opcmd:: show container network + + Show a list available container networks + +.. opcmd:: restart container <containername> + + Restart a given container + +.. opcmd:: update container image <containername> + + Update container image + + + +********************* +Example Configuration +********************* + + For the sake of demonstration, `example #1 in the official documentation + <https://www.zabbix.com/documentation/current/manual/installation/containers>`_ + to the declarative VyOS CLI syntax. + + .. code-block:: none + + set container network zabbix-net prefix 172.20.0.0/16 + set container network zabbix-net description 'Network for Zabbix component containers' + + set container name mysql-server image mysql:8.0 + set container name mysql-server network zabbix-net + + set container name mysql-server environment 'MYSQL_DATABASE' value 'zabbix' + set container name mysql-server environment 'MYSQL_USER' value 'zabbix' + set container name mysql-server environment 'MYSQL_PASSWORD' value 'zabbix_pwd' + set container name mysql-server environment 'MYSQL_ROOT_PASSWORD' value 'root_pwd' + + set container name zabbix-java-gateway image zabbix/zabbix-java-gateway:alpine-5.2-latest + set container name zabbix-java-gateway network zabbix-net + + set container name zabbix-server-mysql image zabbix/zabbix-server-mysql:alpine-5.2-latest + set container name zabbix-server-mysql network zabbix-net + + set container name zabbix-server-mysql environment 'DB_SERVER_HOST' value 'mysql-server' + set container name zabbix-server-mysql environment 'MYSQL_DATABASE' value 'zabbix' + set container name zabbix-server-mysql environment 'MYSQL_USER' value 'zabbix' + set container name zabbix-server-mysql environment 'MYSQL_PASSWORD' value 'zabbix_pwd' + set container name zabbix-server-mysql environment 'MYSQL_ROOT_PASSWORD' value 'root_pwd' + set container name zabbix-server-mysql environment 'ZBX_JAVAGATEWAY' value 'zabbix-java-gateway' + + set container name zabbix-server-mysql port zabbix source 10051 + set container name zabbix-server-mysql port zabbix destination 10051 + + set container name zabbix-web-nginx-mysql image zabbix/zabbix-web-nginx-mysql:alpine-5.2-latest + set container name zabbix-web-nginx-mysql network zabbix-net + + set container name zabbix-web-nginx-mysql environment 'MYSQL_DATABASE' value 'zabbix' + set container name zabbix-web-nginx-mysql environment 'ZBX_SERVER_HOST' value 'zabbix-server-mysql' + set container name zabbix-web-nginx-mysql environment 'DB_SERVER_HOST' value 'mysql-server' + set container name zabbix-web-nginx-mysql environment 'MYSQL_USER' value 'zabbix' + set container name zabbix-web-nginx-mysql environment 'MYSQL_PASSWORD' value 'zabbix_pwd' + set container name zabbix-web-nginx-mysql environment 'MYSQL_ROOT_PASSWORD' value 'root_pwd' + + set container name zabbix-web-nginx-mysql port http source 80 + set container name zabbix-web-nginx-mysql port http destination 8080
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