# Kubernetes

<img src="https://github.com/kubernetes/kubernetes/raw/master/logo/logo.png" width="100">

----

Kubernetes without the features I don't care about.

Some of the removed features

* OpenAPI/Swagger
* cloud-controller-manager
* kube aggregation
* APIs (NOTE: most of these are old APIs that have been replaced)
  * admissionregistration/v1alpha1
  * authentication/v1beta1
  * authorization/v1beta1
  * certificates/v1beta1
  * events/v1beta1
  * imagepolicy/v1alpha1
  * rbac/v1alpha1
  * rbac/v1beta1
  * settings/v1alpha1
  * storage/v1alpha1
* Authentication
  * bootstrap token
  * oidc
  * webhook
* Authorization
  * ABAC
* Cloud Providers (all of them)
* Controllers
  * Bootstrap
  * Certificates
  * Cloud
  * Cluster Role Aggregation
  * Cloud based node IPAM
  * Replication
  * Route
* Credential Providers AWS/GCP/Azure/Rancher
* Kubelet
  * Device Plugin
  * Certificates
  * Checkpoint
  * Device Manager
  * Custom Metrics
  * Dockershim
  * 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
* etcd (yeah, i'm using sqlite3)


Build
-----

    # First have sane GOPATH, hopefully you know how to do that
    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 &
```

Run Kubernetes

```bash
# Server
./k3s

# Agent (If doing this on another host copy the ./data folder)
sudo ./k3s agent

# Install Networking
export KUBECONFIG=./data/cred/kubeconfig.yaml
curl -s "https://cloud.weave.works/k8s/net?k8s-version=$(./kubectl version | base64 | tr -d '\n')" | sed 's!rbac.authorization.k8s.io/v1beta1!rbac.authorization.k8s.io/v1!g' | ./kubectl apply -f -
```

Your kubeconfig file is in `./data/cred/kubeconfig.yaml`

Enjoy.