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Kelsey Hightower 2016-07-07 08:06:53 -07:00
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docs/etcd.md
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@ -1,8 +1,15 @@
# etcd
# Bootstrapping a H/A etcd cluster
Setup a 3 node etcd cluster.
In this lab you will bootstrap a 3 node etcd cluster. The following virtual machines will be used:
### Copy TLS Certs
````
NAME ZONE MACHINE_TYPE INTERNAL_IP STATUS
etcd0 us-central1-f n1-standard-1 10.240.0.10 RUNNING
etcd1 us-central1-f n1-standard-1 10.240.0.11 RUNNING
etcd2 us-central1-f n1-standard-1 10.240.0.12 RUNNING
````
## Copy TLS Certs
```
gcloud compute copy-files ca.pem kubernetes-key.pem kubernetes.pem etcd0:~/
@ -16,14 +23,16 @@ gcloud compute copy-files ca.pem kubernetes-key.pem kubernetes.pem etcd1:~/
gcloud compute copy-files ca.pem kubernetes-key.pem kubernetes.pem etcd2:~/
```
## Provision the etcd Cluster
## etcd0
### etcd0
```
gcloud compute ssh etcd0
```
Move the TLS certificates in place:
```
sudo mkdir -p /etc/etcd/
@ -33,6 +42,8 @@ sudo mkdir -p /etc/etcd/
sudo mv ca.pem kubernetes-key.pem kubernetes.pem /etc/etcd/
```
Download and install the etcd binaries:
```
wget https://github.com/coreos/etcd/releases/download/v3.0.1/etcd-v3.0.1-linux-amd64.tar.gz
```
@ -53,6 +64,8 @@ sudo cp etcd-v3.0.1-linux-amd64/etcd /usr/bin/
sudo mkdir -p /var/lib/etcd
```
Create the etcd systemd unit file:
```
sudo sh -c 'echo "[Unit]
Description=etcd
@ -81,12 +94,16 @@ RestartSec=5
WantedBy=multi-user.target" > /etc/systemd/system/etcd.service'
```
Start etcd:
```
sudo systemctl daemon-reload
sudo systemctl enable etcd
sudo systemctl start etcd
```
### Verification
```
sudo systemctl status etcd
```
@ -102,12 +119,14 @@ error #0: client: endpoint http://127.0.0.1:2379 exceeded header timeout
error #1: dial tcp 127.0.0.1:4001: getsockopt: connection refused
```
## etcd1
### etcd1
```
gcloud compute ssh etcd1
```
Move the TLS certificates in place:
```
sudo mkdir -p /etc/etcd/
```
@ -116,6 +135,8 @@ sudo mkdir -p /etc/etcd/
sudo mv ca.pem kubernetes-key.pem kubernetes.pem /etc/etcd/
```
Download and install the etcd binaries:
```
wget https://github.com/coreos/etcd/releases/download/v3.0.1/etcd-v3.0.1-linux-amd64.tar.gz
```
@ -136,6 +157,8 @@ sudo cp etcd-v3.0.1-linux-amd64/etcd /usr/bin/
sudo mkdir /var/lib/etcd
```
Create the etcd systemd unit file:
```
sudo sh -c 'echo "[Unit]
Description=etcd
@ -164,12 +187,16 @@ RestartSec=5
WantedBy=multi-user.target" > /etc/systemd/system/etcd.service'
```
Start etcd:
```
sudo systemctl daemon-reload
sudo systemctl enable etcd
sudo systemctl start etcd
```
#### Verification
```
sudo systemctl status etcd
```
@ -185,12 +212,14 @@ member ffed16798470cab5 is healthy: got healthy result from https://10.240.0.11:
cluster is healthy
```
## etcd2
### etcd2
```
gcloud compute ssh etcd2
```
Move the TLS certificates in place:
```
sudo mkdir -p /etc/etcd/
```
@ -199,6 +228,8 @@ sudo mkdir -p /etc/etcd/
sudo mv ca.pem kubernetes-key.pem kubernetes.pem /etc/etcd/
```
Download and install the etcd binaries:
```
wget https://github.com/coreos/etcd/releases/download/v3.0.1/etcd-v3.0.1-linux-amd64.tar.gz
```
@ -219,6 +250,8 @@ sudo cp etcd-v3.0.1-linux-amd64/etcd /usr/bin/
sudo mkdir /var/lib/etcd
```
Create the etcd systemd unit file:
```
sudo sh -c 'echo "[Unit]
Description=etcd
@ -247,12 +280,16 @@ RestartSec=5
WantedBy=multi-user.target" > /etc/systemd/system/etcd.service'
```
Start etcd:
```
sudo systemctl daemon-reload
sudo systemctl enable etcd
sudo systemctl start etcd
```
#### Verification
```
sudo systemctl status etcd
```