github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-30 15:05:27 +00:00
Code Issues Projects Releases Wiki Activity

There is an open issue #9837 because of which kubernets is not able to start the API server if the underlying kernel does not support memory limits for CGROUP. Apparently docker is able

Browse Source 
to detect this, but somehow this is not communicated to invocations from the remote API. Thus to get kubernets working on a local docker installation, its important to make sure that
the memory and swap accounting are turned on in the kernel and passed as a parameter to the kernel when booting up.

Hence added the required instructions as a pre-req for running kubernets in a local docker installation.
This commit is contained in:
Avinash Sridharan 2015-07-30 14:19:57 -07:00
parent fa6ee98ddc
commit 895cbb92ad
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
docs/getting-started-guides/docker.md
View File

@ -55,6 +55,25 @@ Here's a diagram of what the final result will look like:
### Prerequisites
1. You need to have docker installed on one machine.
2. Your kernel should support memory and swap accounting. Ensure that the
following configs are turned on in your linux kernel:
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_SWAP_ENABLED=y
CONFIG_MEMCG_KMEM=y
3. Enable the memory and swap accounting in ther kernel at boot as command line
parameters as follows:
GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"
NOTE: The above is specifically for GRUB2.
You can check the command line parameters passed to your kenel by looking at the
output of /proc/cmdline
### Step One: Run etcd