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Added AWS code.

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This commit is contained in:
Wojciech Knapik
2018-07-25 13:18:38 +02:00
parent b974042d95
commit e31f660762
13 changed files with 1594 additions and 2 deletions
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61
docs/07-bootstrapping-etcd.md
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@@ -6,10 +6,41 @@ Kubernetes components are stateless and store cluster state in [etcd](https://gi
The commands in this lab must be run on each controller instance: `controller-0`, `controller-1`, and `controller-2`. Login to each controller instance using the `gcloud` command. Example:
<details open>
<summary>GCP</summary>
```
gcloud compute ssh controller-0
```
</details>
<details>
<summary>AWS</summary>
```
VPC_ID="$(aws ec2 describe-vpcs \
--filters Name=tag-key,Values=kubernetes.io/cluster/kubernetes-the-hard-way \
--profile kubernetes-the-hard-way \
--query 'Vpcs[0].VpcId' \
--output text)"
get_ip() {
aws ec2 describe-instances \
--filters \
Name=vpc-id,Values="$VPC_ID" \
Name=tag:Name,Values="$1" \
--profile kubernetes-the-hard-way \
--query 'Reservations[0].Instances[0].PublicIpAddress' \
--output text
}
```
```
ssh -i ~/.ssh/kubernetes-the-hard-way "ubuntu@$(get_ip controller-0)"
```
</details>
### Running commands in parallel with tmux
[tmux](https://github.com/tmux/tmux/wiki) can be used to run commands on multiple compute instances at the same time. See the [Running commands in parallel with tmux](01-prerequisites.md#running-commands-in-parallel-with-tmux) section in the Prerequisites lab.
@@ -45,17 +76,47 @@ Extract and install the `etcd` server and the `etcdctl` command line utility:
The instance internal IP address will be used to serve client requests and communicate with etcd cluster peers. Retrieve the internal IP address for the current compute instance:
<details open>
<summary>GCP</summary>
```
INTERNAL_IP=$(curl -s -H "Metadata-Flavor: Google" \
http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/ip)
```
</details>
<details>
<summary>AWS</summary>
```
INTERNAL_IP="$(curl -s http://169.254.169.254/latest/meta-data/local-ipv4)"
```
</details>
<p></p>
Each etcd member must have a unique name within an etcd cluster. Set the etcd name to match the hostname of the current compute instance:
<details open>
<summary>GCP</summary>
```
ETCD_NAME=$(hostname -s)
```
</details>
<details>
<summary>AWS</summary>
```
ETCD_NAME="$(curl -s http://169.254.169.254/latest/user-data/|tr '|' '\n'|grep '^name='|cut -d= -f2)"
```
</details>
<p></p>
Create the `etcd.service` systemd unit file:
```