Advanced container settings

When creating or editing a container you can configure a number of additional settings in the Advanced container settings section.

Command & logging

In this section you can configure the command that runs when the container starts as well as configure logging for the container.

Field/Option	Overview
Command	Set the command that is run when the container starts. Select Default to use the default command provided by the container's image, or select Override and provide a command to override the default value.
Entrypoint	Set the entrypoint for the container. Select Default to use the default entrypoint provided by the container's image, or select Override and provide an entrypoint to override the default value.
Working Dir	Set the working directory your container should start in (within the container's filesystem).
User	Specify the user that the container's command should run as.
Console	Set the console configuration for your container.
Driver	Select the logging driver to use for your container. Available options will depend on the logging drivers configured on your Docker host.
Options	Set additional options for your logging driver. To add a new option click add logging driver option and configure accordingly.

Volumes

Here you can configure volume mappings for your container. You can map to existing named volumes or bind mount to locations on your Docker host.

Field/Option	Overview
Container path	Specify where you want to make the volume or bind mount available within the container's filesystem.
Mapping type	Select Volume to map a named volume, or select Bind to map a bind mount.
Volume	If using the Volume mapping type, select the named volume to mount from the dropdown.
Host path	If using the Bind mapping type, specify the path on the Docker host you want to bind mount in the container.
Writable / Read-only	Select Writable if you want the container to be able to write to the mapping. Select Read-only if the container should not be able to write to the mapping.

Network

In this section you can configure the network settings for the container.

Field/Option	Overview
Network	Select the network to attach the container to from the dropdown.
Hostname	Specify the hostname for the container.
Domain Name	Specify the domain name for the container.
Mac Address	Specify the MAC address to set on the container.
IPv4 Address	Specify the IPv4 address to use for the container. This must be within the range for the chosen network and should not be already assigned to a container.
IPv6 Address	Specify the IPv6 address to use for the container. This must be within the range for the chosen network and should not be already assigned to a container.
Primary DNS Server	Specify the primary DNS server to use within the container.
Secondary DNS Server	Specify the secondary DNS server to use within the container.
Hosts file entries	Click add additional entry to add a new host file entry for the container. Host file values should be formatted as hostname:address (for example database:192.168.1.1).

Env

Use this section to add or edit environment variables made available in the container. Click Add an environment variable to create a new variable, or edit an existing variable with the fields provided. You can also click Load variables from .env file to import an existing .env file with your variables. To remove a variable, click the trash can icon to the right of the variable to remove.

Field/Option	Overview
Name	Set the name for the environment variable.
Value	Set the value for the environment variable.

If you want to add multiple variables at once, click on Advanced mode to switch to an editor view where you can paste a block of variables and values.

Labels

You can set labels on your container using this section. Click add label to add a new label, or edit an existing label using the fields provided. To remove a label, click the trash can icon to the right of the label to remove.

Field/Option	Overview
Name	Set the name for the label.
Value	Set the value for the label.

Restart policy

Use this section to configure the restart policy for your container. Possible options are:

• Never: Do not automatically restart the container when it exits. This is the default.

• Always: Always restart the container regardless of the exit status. When you specify always, Docker will try to restart the container indefinitely. The container will also always start on Docker startup, regardless of the current state of the container.

• On failure: Restart only if the container exits with a non-zero exit status.

• Unless stopped: Always restart the container regardless of the exit status, including on Docker startup, except if the container was put into a stopped state before Docker was stopped.

Runtime & Resources

This section lets you configure runtime options for your container, add or configure GPUs for use within the container, and specify resource limitations on the container.

Runtime

Here you can configure runtime options for the container.

Field/Option	Overview
Privileged mode	Enable this option to run the container in privileged mode.
Init	Enable this option to tell Docker that an init process should be used as PID 1 in the container.
Runtime	Select the runtime to use to start the container. Options will depend on available runtimes on your Docker host.
Devices	Use this option to make devices on your Docker host available within the container. Click add device to add a new device, and define the host path for the device and the container path for where you want the device to appear within the container.
Sysctls	Use this option to specify sysctls to make available within the container. Click add sysctl to add a new sysctl, and set the name and value for your sysctl as required.
Shared memory size	Specify the size (in MB) of the shared memory device (/dev/shm) for the container.

GPU

Here you can enable GPU access for the container and configure the GPU settings as required.

GPU support is currently only available on Docker Standalone environments.

Field/Option	Overview
Enable GPU	Toggle this option on to enable GPU access for the container.
GPU selector	Select the GPU(s) to make available to the container, or choose Use All GPUs to provide access to all the GPUs on the Docker host.
Capabilities	Select the capabilities you want to use with the container. Portainer preselects compute and utility as they are the defaults when not specifying capabilities.
Control	View a generated equivalent of the Docker CLI's --gpus option based on your selections above.

Resources

Here you can configure resource limits for your container. You can use the sliders to set the value or enter a value in the fields.

Field/Option	Overview
Memory reservation (MB)	Specify the amount of memory (in MB) to reserve for the container.
Memory limit (MB)	Specify the maximum amount of memory (in MB) the container is allowed to use.
Maximum CPU usage	Specify the maximum amount of CPU the container is allowed to use. This is specified based on the number of processing threads available on your Docker host.

Capabilities

In this section you can configure the individual capabilities for your container. For more information refer to the Docker documentation.