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Jacklull
k3s
Commits
6882ba9a
Commit
6882ba9a
authored
Sep 21, 2018
by
Darren Shepherd
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6882ba9a
# Kubernetes
# Kubernetes
[
![GoDoc Widget
]
]
[
GoDoc
]
[
![CII Best Practices
]
(https://bestpractices.coreinfrastructure.org/projects/569/badge)](https://bestpractices.coreinfrastructure.org/projects/569)
<img
src=
"https://github.com/kubernetes/kubernetes/raw/master/logo/logo.png"
width=
"100"
>
<img
src=
"https://github.com/kubernetes/kubernetes/raw/master/logo/logo.png"
width=
"100"
>
----
----
Kubernetes is an open source system for managing
[
containerized applications
]
Kubernetes without the features I don't care about.
across multiple hosts; providing basic mechanisms for deployment, maintenance,
and scaling of applications.
Some of the removed features
Kubernetes builds upon a decade and a half of experience at Google running
*
OpenAPI/Swagger
production workloads at scale using a system called
[
Borg
]
,
*
cloud-controller-manager
combined with best-of-breed ideas and practices from the community.
*
kube aggregation
*
APIs (NOTE: most of these are old APIs that have been replaced)
Kubernetes is hosted by the Cloud Native Computing Foundation (
[
CNCF
]
).
*
admissionregistration/v1alpha1, authentication/v1beta1, authorization/v1beta1, certificates/v1beta1, events/v1beta1, imagepolicy/v1alpha1, rbac/v1alpha1, settings/v1alpha1, storage/v1alpha1,
If you are a company that wants to help shape the evolution of
*
Authentication
technologies that are container-packaged, dynamically-scheduled
*
bootstrap token, oidc
and microservices-oriented, consider joining the CNCF.
*
Authorization
For details about who's involved and how Kubernetes plays a role,
*
ABAC
read the CNCF
[
announcement
]
.
*
All alpha features
*
Cloud Providers (all of them)
----
*
Controllers
*
Bootstrap
## To start using Kubernetes
*
Certificates
*
Cloud
See our documentation on
[
kubernetes.io
]
.
*
Cloud based node IPAM
*
Route
Try our
[
interactive tutorial
]
.
*
Credential Providers AWS/GCP/Azure/Rancher
*
Kubelet
Take a free course on
[
Scalable Microservices with Kubernetes
]
.
*
Device Plugin
*
Certificates
## To start developing Kubernetes
*
Checkpoint
*
Device Manager
*
Custom Metrics
*
Dockershim (IMPORTANT: No docker support, the only runtime that works in containerd)
*
GPU
*
Mount Pod
*
Network
*
Hairpin
*
Kubenet
*
rkt
*
Volume Drivers
*
aws_ebs, azure_dd, azure_file, cephfs, cinder, fc, flocker, gce_pd, glusterfs, iscsi, photon_pd, portworx, quobyte, rbd, scaleio, storageos, vsphere_volume
*
Admission Controllers
*
admin, alwayspullimages, antiaffinity, defaulttolerationseconds, deny, eventratelimit, exec, extendedresourcetoleration, gc, imagepolicy, initialreosurces, limitranger, namespace, noderestriction, persistentvolume, podnodeselector, podpreset, podtolerationrestriction, priority, resourcequota, security, securitycontext, storageobjectinuseprotection
What is left? A lot. Basically all your normal pod/deployment/service stuff is there. Most apps for kubernetes will run just fine.
Full Build
----------
# Setup your GOPATH. Note that this code should be at k8s.io/kubernetes in your GOPATH, not github.com/ibuildthecloud/k3s
go build -o kubectl ./cmd/kubectl
go build -o hyperkube ./cmd/hyperkube
Now just run hyperkube as you normally would.
Super Opinionated Approach that probably won't work for you
-----------------------------------------------------------
# Setup your GOPATH. Note that this code should be at k8s.io/kubernetes in your GOPATH, not github.com/ibuildthecloud/k3s
go build -o k3s
go build -o kubectl ./cmd/kubectl
Run
---
Run containerd
```
bash
# Download and install containerd and runc
sudo
curl
-fL
-o
/usr/local/bin/runc https://github.com/opencontainers/runc/releases/download/v1.0.0-rc5/runc.amd64
sudo chmod
+x /usr/local/bin/runc
curl
-fsL
https://github.com/containerd/containerd/releases/download/v1.1.1/containerd-1.1.1.linux-amd64.tar.gz |
sudo tar
xvf /usr/src/containerd.tgz
-C
/usr/local/bin bin/
--strip-components
=
1
# Some CNI
sudo mkdir
-p
/opt/cni/bin
curl
-fsL
https://github.com/containernetworking/plugins/releases/download/v0.7.1/cni-plugins-amd64-v0.7.1.tgz |
sudo tar
xvzf -
-C
/opt/cni/bin ./loopback
sudo
containerd &
```
The
[
community repository
]
hosts all information about
Run Kubernetes
building Kubernetes from source, how to contribute code
and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
```
bash
# Server
./k3s
##### You have a working [Go environment].
# Agent (If doing this on another host copy the ./data folder)
sudo
./k3s agent
```
# Install Networking
$ go get -d k8s.io/kubernetes
export
KUBECONFIG
=
./data/cred/kubeconfig.yaml
$ cd $GOPATH/src/k8s.io/kubernetes
curl
-s
"https://cloud.weave.works/k8s/net?k8s-version=
$(
./kubectl version |
base64
|
tr
-d
'\n'
)
"
| ./kubectl apply
-f
-
$ make
```
```
##### You have a working [Docker environment].
Your kubeconfig file is in
`./data/cred/kubeconfig.yaml`
```
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
```
For the full story, head over to the
[
developer's documentation
]
.
Enjoy.
## Support
If you need support, start with the
[
troubleshooting guide
]
,
and work your way through the process that we've outlined.
That said, if you have questions, reach out to us
[
one way or another
][
communication
]
.
[
announcement
]:
https://cncf.io/news/announcement/2015/07/new-cloud-native-computing-foundation-drive-alignment-among-container
[
Borg
]:
https://research.google.com/pubs/pub43438.html
[
CNCF
]:
https://www.cncf.io/about
[
communication
]:
https://git.k8s.io/community/communication
[
community repository
]:
https://git.k8s.io/community
[
containerized applications
]:
https://kubernetes.io/docs/concepts/overview/what-is-kubernetes/
[
developer's documentation
]:
https://git.k8s.io/community/contributors/devel#readme
[
Docker environment
]:
https://docs.docker.com/engine
[
Go environment
]:
https://golang.org/doc/install
[
GoDoc
]:
https://godoc.org/k8s.io/kubernetes
[
GoDoc Widget
]:
https://godoc.org/k8s.io/kubernetes?status.svg
[
interactive tutorial
]:
https://kubernetes.io/docs/tutorials/kubernetes-basics
[
kubernetes.io
]:
https://kubernetes.io
[
Scalable Microservices with Kubernetes
]:
https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615
[
troubleshooting guide
]:
https://kubernetes.io/docs/tasks/debug-application-cluster/troubleshooting/
[

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