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Danny Froberg
microk8s
Commits
f4198427
Commit
f4198427
authored
Nov 23, 2018
by
Nick Veitch
Committed by
Konstantinos Tsakalozos
Nov 23, 2018
Browse files
Add building from source doc (#204)
* Add building from source doc * typo
parent
fa325201
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# Building from source
Building a new version of MicroK8s from the source is straightforward.
1.
If you don't already have it, install the latest version of the
`snapcraft`
tool:
```
bash
sudo
snap
install
snapcraft
--classic
```
1.
Clone the MicroK8s repository:
```
bash
git clone https://github.com/ubuntu/microk8s.git
cd
microk8s/
```
1.
Ensure local package lists are up to date. On Ubuntu, run:
```
bash
sudo
apt update
```
1.
Run snapcraft to build the snap package:
```
bash
snapcraft
```
1.
Once the snap is built it can be installed with:
```
bash
snap
install
microk8s_v1.12.2_amd64.snap
--classic
--dangerous
```
(substitute the name of the version that was actually built as required).
For more information on managing snaps, see the
[
Snapcraft documentation
](
https://docs.snapcraft.io/getting-started/3876
)
## Using different build options
You can set the following environment variables prior to building:
| Variable | Description | Default value |
|--------------------------|-----------------------------------------------------------|-------------------------------------|
| KUBE_VERSION | Kubernetes release to package | Latest stable version |
| ETCD_VERSION | Version of etcd | 3.3.4 |
| CNI_VERSION | Version of CNI tools | 0.7.1 |
| KUBE_TRACK | Kubernetes series (e.g., 1.10) to package | Latest stable |
| ISTIO_VERSION | istio release | v1.0.0 |
For example:
```
bash
KUBE_VERSION
=
v1.9.6 snapcraft
```
## Faster builds
To speed-up the build process you can reuse the binaries already downloaded from a
previous build. Binaries are placed under
`parts/microk8s/build/build/kube_bins`
.
All you need to do is to make a copy of this directory and have the
`KUBE_SNAP_BINS`
environment variable point to it.
After a standard build, run the following:
```
bash
cp
-r
parts/microk8s/build/build/kube_bins
.
export
KUBE_SNAP_BINS
=
$PWD
/kube_bins/v1.12.2/
snapcraft
```
...this build will be much faster and will reuse binaries in
`KUBE_SNAP_BINS`
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