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Updated cloud-configs and AWS CoreOS instructions to Kubernetes 0.8.1 and informing users about better picking CoreOS AWS images. Refs #3543

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Paulo Pires
2015-01-16 11:25:10 +00:00
parent b1f5b3f287
commit 20eb0b2bf3
3 changed files with 122 additions and 32 deletions
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18
docs/getting-started-guides/aws-coreos.md
View File

@@ -10,13 +10,13 @@ The example below creates an elastic Kubernetes cluster with 3 worker nodes and
* Cluster bootstrapping using [cloud-config](https://coreos.com/docs/cluster-management/setup/cloudinit-cloud-config)
* Cross container networking with [flannel](https://github.com/coreos/flannel#flannel)
* Auto worker registration with [kube-register](https://github.com/kelseyhightower/kube-register#kube-register)
* Kubernetes v0.4.2 [official binaries](https://github.com/GoogleCloudPlatform/kubernetes/releases/tag/v0.4.2)
* Kubernetes v0.8.1 [official binaries](https://github.com/GoogleCloudPlatform/kubernetes/releases/tag/v0.8.1)
## Prerequisites
* [kubecfg CLI](aws/kubecfg.md)
* [aws CLI](http://aws.amazon.com/cli)
* CoreOS 490.0.0+
* [CoreOS image for AWS](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel)
## Starting a Cluster
@@ -46,7 +46,7 @@ aws cloudformation describe-stacks --stack-name kubernetes
### Manually
The following commands use the CoreOS 490.0.0 alpha AMI `ami-e18dc5d1` from the `us-west-2` region. For a list of different regions and corresponding AMI IDs see the [CoreOS EC2 cloud provider documentation](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel).
The following commands shall use the latest CoreOS alpha AMI for the `us-west-2` region. For a list of different regions and corresponding AMI IDs see the [CoreOS EC2 cloud provider documentation](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel).
#### Create the Kubernetes Security Group
@@ -64,8 +64,10 @@ aws ec2 authorize-security-group-ingress --group-name kubernetes --source-securi
#### Launch the master
*Attention:* Replace ```<ami_image_id>``` bellow for a [suitable version of CoreOS image for AWS](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel).
```
aws ec2 run-instances --image-id ami-e18dc5d1 --key-name <keypair> \
aws ec2 run-instances --image-id <ami_image_id> —key-name <keypair> \
--region us-west-2 --security-groups kubernetes --instance-type m3.medium \
--user-data file://master.yaml
```
@@ -101,16 +103,20 @@ Edit `node.yaml` and replace all instances of `<master-private-ip>` with the **p
### Launch 3 worker nodes
*Attention:* Replace ```<ami_image_id>``` bellow for a [suitable version of CoreOS image for AWS](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel).
```
aws ec2 run-instances --count 3 --image-id ami-e18dc5d1 --key-name <keypair> \
aws ec2 run-instances --count 3 --image-id <ami_image_id> --key-name <keypair> \
--region us-west-2 --security-groups kubernetes --instance-type m3.medium \
--user-data file://node.yaml
```
### Add additional worker nodes
*Attention:* Replace ```<ami_image_id>``` bellow for a [suitable version of CoreOS image for AWS](https://coreos.com/docs/running-coreos/cloud-providers/ec2/#choosing-a-channel).
```
aws ec2 run-instances --count 1 --image-id ami-e18dc5d1 --key-name <keypair> \
aws ec2 run-instances --count 1 --image-id <ami_image_id> --key-name <keypair> \
--region us-west-2 --security-groups kubernetes --instance-type m3.medium \
--user-data file://node.yaml
```

111
docs/getting-started-guides/aws/cloud-configs/master.yaml
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@@ -1,26 +1,97 @@
#cloud-config
---
write_files:
- path: /opt/bin/waiter.sh
owner: root
content: |
#! /usr/bin/bash
until curl http://127.0.0.1:4001/v2/machines; do sleep 2; done
coreos:
fleet:
etcd_servers: http://127.0.0.1:4001
metadata: role=master
etcd:
name: etcd
addr: $private_ipv4:4001
bind-addr: 0.0.0.0
peer-addr: $private_ipv4:7001
cluster-active-size: 1
http-read-timeout: 86400.0
snapshot: true
units:
- name: setup-network-environment.service
command: start
content: |
[Unit]
Description=Setup Network Environment
Documentation=https://github.com/kelseyhightower/setup-network-environment
Requires=network-online.target
After=network-online.target
[Service]
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/setup-network-environment
ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment
ExecStart=/opt/bin/setup-network-environment
RemainAfterExit=yes
Type=oneshot
- name: etcd.service
command: start
content: |
[Unit]
Description=etcd
Requires=setup-network-environment.service
After=setup-network-environment.service
[Service]
EnvironmentFile=/etc/network-environment
User=etcd
PermissionsStartOnly=true
ExecStart=/usr/bin/etcd \
--name ${DEFAULT_IPV4} \
--addr ${DEFAULT_IPV4}:4001 \
--bind-addr 0.0.0.0 \
--cluster-active-size 1 \
--data-dir /var/lib/etcd \
--http-read-timeout 86400 \
--peer-addr ${DEFAULT_IPV4}:7001 \
--snapshot true
Restart=always
RestartSec=10s
- name: fleet.socket
command: start
content: |
[Socket]
ListenStream=/var/run/fleet.sock
- name: fleet.service
command: start
content: |
[Unit]
Description=fleet daemon
Wants=etcd.service
After=etcd.service
Wants=fleet.socket
After=fleet.socket
[Service]
Environment="FLEET_ETCD_SERVERS=http://127.0.0.1:4001"
Environment="FLEET_METADATA=role=master"
ExecStart=/usr/bin/fleetd
Restart=always
RestartSec=10s
- name: etcd-waiter.service
command: start
content: |
[Unit]
Description=etcd waiter
Wants=network-online.target
Wants=etcd.service
After=etcd.service
After=network-online.target
Before=flannel.service
Before=setup-network-environment.service
[Service]
ExecStartPre=/usr/bin/chmod +x /opt/bin/waiter.sh
ExecStart=/usr/bin/bash /opt/bin/waiter.sh
RemainAfterExit=true
Type=oneshot
- name: flannel.service
command: start
content: |
[Unit]
Wants=etcd-waiter.service
After=etcd-waiter.service
Requires=etcd.service
After=etcd.service
After=network-online.target
@@ -30,9 +101,9 @@ coreos:
[Service]
Type=notify
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/flanneld
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
ExecStartPre=-/usr/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.0.0.0/16"}'
ExecStartPre=/usr/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
ExecStart=/opt/bin/flanneld
- name: kube-apiserver.service
command: start
@@ -45,12 +116,14 @@ coreos:
[Service]
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.5.4/bin/linux/amd64/kube-apiserver
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.8.1/bin/linux/amd64/kube-apiserver
ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-apiserver
ExecStart=/opt/bin/kube-apiserver \
--address=0.0.0.0 \
--port=8080 \
--portal_net=10.244.0.0/16 \
--etcd_servers=http://127.0.0.1:4001 \
--public_address_override=$private_ipv4 \
--logtostderr=true
Restart=always
RestartSec=10
@@ -64,7 +137,7 @@ coreos:
After=kube-apiserver.service
[Service]
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.5.4/bin/linux/amd64/kube-controller-manager
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.8.1/bin/linux/amd64/kube-controller-manager
ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-controller-manager
ExecStart=/opt/bin/kube-controller-manager \
--master=127.0.0.1:8080 \
@@ -81,7 +154,7 @@ coreos:
After=kube-apiserver.service
[Service]
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.5.4/bin/linux/amd64/kube-scheduler
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.8.1/bin/linux/amd64/kube-scheduler
ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-scheduler
ExecStart=/opt/bin/kube-scheduler --master=127.0.0.1:8080
Restart=always
@@ -94,12 +167,14 @@ coreos:
Documentation=https://github.com/kelseyhightower/kube-register
Requires=kube-apiserver.service
After=kube-apiserver.service
Requires=fleet.service
After=fleet.service
[Service]
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kube-register
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/kube-register
ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-register
ExecStart=/opt/bin/kube-register \
--metadata=role=knode \
--metadata=role=node \
--fleet-endpoint=unix:///var/run/fleet.sock \
--api-endpoint=http://127.0.0.1:8080
Restart=always

25
docs/getting-started-guides/aws/cloud-configs/node.yaml
View File

@@ -1,14 +1,23 @@
#cloud-config
coreos:
fleet:
etcd_servers: http://<master-private-ip>:4001
metadata: role=knode
units:
- name: etcd.service
mask: true
- name: fleet.service
command: start
content: |
[Unit]
Description=fleet daemon
Wants=fleet.socket
After=fleet.socket
[Service]
Environment="FLEET_ETCD_SERVERS=http://<master-private-ip>:4001"
Environment="FLEET_METADATA=role=node"
ExecStart=/usr/bin/fleetd
Restart=always
RestartSec=10s
- name: flannel.service
command: start
content: |
@@ -20,7 +29,7 @@ coreos:
[Service]
Type=notify
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/flanneld
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
ExecStart=/opt/bin/flanneld -etcd-endpoints http://<master-private-ip>:4001
- name: docker.service
@@ -50,7 +59,7 @@ coreos:
[Service]
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/setup-network-environment
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/setup-network-environment
ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment
ExecStart=/opt/bin/setup-network-environment
RemainAfterExit=yes
@@ -65,7 +74,7 @@ coreos:
After=setup-network-environment.service
[Service]
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.5.4/bin/linux/amd64/kube-proxy
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.8.1/bin/linux/amd64/kube-proxy
ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-proxy
ExecStart=/opt/bin/kube-proxy \
--etcd_servers=http://<master-private-ip>:4001 \
@@ -83,12 +92,12 @@ coreos:
[Service]
EnvironmentFile=/etc/network-environment
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.5.4/bin/linux/amd64/kubelet
ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/kubernetes-release/release/v0.8.1/bin/linux/amd64/kubelet
ExecStartPre=/usr/bin/chmod +x /opt/bin/kubelet
ExecStart=/opt/bin/kubelet \
--address=0.0.0.0 \
--port=10250 \
--hostname_override=${DEFAULT_IPV4} \
--hostname_override=$private_ipv4 \
--etcd_servers=http://<master-private-ip>:4001 \
--logtostderr=true
Restart=always