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update create swarm and add nodes to use the auto-generated join command 

Signed-off-by: Charles Smith <charles.smith@docker.com>
This commit is contained in:
Charles Smith 2016-07-13 16:52:59 -07:00
parent 0a96ba8a0f
commit fec803f779
2 changed files with 55 additions and 40 deletions
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41
docs/swarm/swarm-tutorial/add-nodes.md
View File

@ -19,34 +19,41 @@ to add worker nodes.
1. Open a terminal and ssh into the machine where you want to run a worker node.
This tutorial uses the name `worker1`.
2. Run the following command to create a worker node joined to
the existing swarm:
2. Run the command produced by the `docker swarm init` output from the
[Create a swarm](create-swarm.md) tutorial step to create a worker node joined to the existing swarm:
```bash
$ docker swarm join --secret 4ao565v9jsuogtq5t8s379ulb \
--ca-hash sha256:07ce22bd1a7619f2adc0d63bd110479a170e7c4e69df05b67a1aa2705c88ef09 \
192.168.99.100:2377
```
If you don't have the command available, you can run the following command:
```bash
docker swarm join --secret <SECRET> <MANAGER-IP>:<PORT>
```
Replace `<SECRET>` with the secret that was printed by `docker swarm init` in the
previous step. Replace `<MANAGER-IP>` with the address of the manager node
and `<PORT>` with the port where the manager listens.
Replace `<SECRET>` with the secret that was printed by `docker swarm init`
in the previous step. Replace `<MANAGER-IP>` with the address of the manager
node and `<PORT>` with the port where the manager listens.
In the tutorial, the following command joins `worker1` to the swarm on `manager1`:
```
$ docker swarm join --secret 4ao565v9jsuogtq5t8s379ulb 192.168.99.100:2377
This node joined a Swarm as a worker.
```
The command generated from `docker swarm init` includes the `--ca-hash` to
securely identify the manager node according to its root CA. For the
tutorial, it is OK to join without it.
3. Open a terminal and ssh into the machine where you want to run a second
worker node. This tutorial uses the name `worker2`.
4. Run `docker swarm join --secret <SECRET> <MANAGER-IP>:<PORT>` to create a worker node joined to
the existing Swarm.
4. Run the command produced by the `docker swarm init` output from the
[Create a swarm](create-swarm.md) tutorial step to create a second worker node
joined to the existing swarm:
Replace `<SECRET>` with the secret that was printed by `docker swarm init` in the
previous step. Replace `<MANAGER-IP>` with the address of the manager node
and `<PORT>` with the port where the manager listens.
```bash
$ docker swarm join --secret 4ao565v9jsuogtq5t8s379ulb \
--ca-hash sha256:07ce22bd1a7619f2adc0d63bd110479a170e7c4e69df05b67a1aa2705c88ef09 \
192.168.99.100:2377
```
5. Open a terminal and ssh into the machine where the manager node runs and run
the `docker node ls` command to see the worker nodes:

22
docs/swarm/swarm-tutorial/create-swarm.md
View File

@ -22,18 +22,20 @@ node. For example, the tutorial uses a machine named `manager1`.
2. Run the following command to create a new swarm:
```
```bash
docker swarm init --listen-addr <MANAGER-IP>:<PORT>
```
In the tutorial, the following command creates a swarm on the `manager1` machine:
In the tutorial, the following command creates a swarm on the `manager1`
machine:
```
```bash
$ docker swarm init --listen-addr 192.168.99.100:2377
No --secret provided. Generated random secret:
4ao565v9jsuogtq5t8s379ulb
Swarm initialized: current node (dxn1zf6l61qsb1josjja83ngz) is now a manager.
Swarm initialized: current node (dxn1zf6l61qsb1josjja83ngz) is now a
manager.
To add a worker to this swarm, run the following command:
docker swarm join --secret 4ao565v9jsuogtq5t8s379ulb \
@ -45,9 +47,15 @@ node. For example, the tutorial uses a machine named `manager1`.
`2377`. The other nodes in the swarm must be able to access the manager at
the IP address.
The `--ca-hash` flag provides the identity of the root CA for the manager
node.
2. Save the output of `docker swarm init` that includes the command to join
worker nodes to the swarm.
3. Run `docker info` to view the current state of the swarm:
```
```bash
$ docker info
Containers: 2
@ -66,7 +74,7 @@ node. For example, the tutorial uses a machine named `manager1`.
4. Run the `docker node ls` command to view information about nodes:
```
```bash
$ docker node ls
ID HOSTNAME MEMBERSHIP STATUS AVAILABILITY MANAGER STATUS LEADER
@ -74,7 +82,7 @@ node. For example, the tutorial uses a machine named `manager1`.
```
The `*` next to the node id, indicates that you're currently connected on
The `*` next to the node id indicates that you're currently connected on
this node.
Docker Engine swarm mode automatically names the node for the machine host