ifdef::manvolnum[]
pct(1)
======
-include::attributes.txt[]
:pve-toplevel:
NAME
ifndef::manvolnum[]
Proxmox Container Toolkit
=========================
-include::attributes.txt[]
:pve-toplevel:
endif::manvolnum[]
ifdef::wiki[]
The good news is that LXC uses many kernel security features like
AppArmor, CGroups and PID and user namespaces, which makes containers
-usage quite secure. We distinguish two types of containers:
-
-
-Privileged Containers
-~~~~~~~~~~~~~~~~~~~~~
-
-Security is done by dropping capabilities, using mandatory access
-control (AppArmor), SecComp filters and namespaces. The LXC team
-considers this kind of container as unsafe, and they will not consider
-new container escape exploits to be security issues worthy of a CVE
-and quick fix. So you should use this kind of containers only inside a
-trusted environment, or when no untrusted task is running as root in
-the container.
-
-
-Unprivileged Containers
-~~~~~~~~~~~~~~~~~~~~~~~
-
-This kind of containers use a new kernel feature called user
-namespaces. The root UID 0 inside the container is mapped to an
-unprivileged user outside the container. This means that most security
-issues (container escape, resource abuse, ...) in those containers
-will affect a random unprivileged user, and so would be a generic
-kernel security bug rather than an LXC issue. The LXC team thinks
-unprivileged containers are safe by design.
-
+usage quite secure.
Guest Operating System Configuration
------------------------------------
Container Settings
------------------
+[[pct_general]]
+General Settings
+~~~~~~~~~~~~~~~~
+
+General settings of a container include
+
+* the *Node* : the physical server on which the container will run
+* the *CT ID*: a unique number in this {pve} installation used to identify your container
+* *Hostname*: the hostname of the container
+* *Resource Pool*: a logical group of containers and VMs
+* *Password*: the root password of the container
+* *SSH Public Key*: a public key for connecting to the root account over SSH
+* *Unprivileged container*: this option allows to choose at creation time
+if you want to create a privileged or unprivileged container.
+
+
+Privileged Containers
+^^^^^^^^^^^^^^^^^^^^^
+
+Security is done by dropping capabilities, using mandatory access
+control (AppArmor), SecComp filters and namespaces. The LXC team
+considers this kind of container as unsafe, and they will not consider
+new container escape exploits to be security issues worthy of a CVE
+and quick fix. So you should use this kind of containers only inside a
+trusted environment, or when no untrusted task is running as root in
+the container.
+
+
+Unprivileged Containers
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This kind of containers use a new kernel feature called user
+namespaces. The root UID 0 inside the container is mapped to an
+unprivileged user outside the container. This means that most security
+issues (container escape, resource abuse, ...) in those containers
+will affect a random unprivileged user, and so would be a generic
+kernel security bug rather than an LXC issue. The LXC team thinks
+unprivileged containers are safe by design.
+
+NOTE: If the container uses systemd as an init system, please be
+aware the systemd version running inside the container should be equal
+or greater than 220.
+
[[pct_cpu]]
CPU
~~~
+[thumbnail="gui-create-ct-cpu.png"]
+
You can restrict the number of visible CPUs inside the container using
the `cores` option. This is implemented using the Linux 'cpuset'
cgroup (**c**ontrol *group*). A special task inside `pvestatd` tries
Memory
~~~~~~
+[thumbnail="gui-create-ct-memory.png"]
+
Container memory is controlled using the cgroup memory controller.
[horizontal]
Mount Points
~~~~~~~~~~~~
+[thumbnail="gui-create-ct-root-disk.png"]
+
The root mount point is configured with the `rootfs` property, and you can
configure up to 10 additional mount points. The corresponding options
are called `mp0` to `mp9`, and they can contain the following setting:
Network
~~~~~~~
+[thumbnail="gui-create-ct-network.png"]
+
You can configure up to 10 network interfaces for a single
container. The corresponding options are called `net0` to `net9`, and
they can contain the following setting:
include::pct-network-opts.adoc[]
+[[pct_startup_and_shutdown]]
+Automatic Start and Shutdown of Containers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+After creating your containers, you probably want them to start automatically
+when the host system boots. For this you need to select the option 'Start at
+boot' from the 'Options' Tab of your container in the web interface, or set it with
+the following command:
+
+ pct set <ctid> -onboot 1
+
+.Start and Shutdown Order
+// use the screenshot from qemu - its the same
+[thumbnail="gui-qemu-edit-start-order.png"]
+
+If you want to fine tune the boot order of your containers, you can use the following
+parameters :
+
+* *Start/Shutdown order*: Defines the start order priority. E.g. set it to 1 if
+you want the CT to be the first to be started. (We use the reverse startup
+order for shutdown, so a container with a start order of 1 would be the last to
+be shut down)
+* *Startup delay*: Defines the interval between this container start and subsequent
+containers starts . E.g. set it to 240 if you want to wait 240 seconds before starting
+other containers.
+* *Shutdown timeout*: Defines the duration in seconds {pve} should wait
+for the container to be offline after issuing a shutdown command.
+By default this value is set to 60, which means that {pve} will issue a
+shutdown request, wait 60s for the machine to be offline, and if after 60s
+the machine is still online will notify that the shutdown action failed.
+
+Please note that containers without a Start/Shutdown order parameter will always
+start after those where the parameter is set, and this parameter only
+makes sense between the machines running locally on a host, and not
+cluster-wide.
+
+
Backup and Restore
------------------
projects / pve-docs.git / blobdiff