centersl/docker-docs
1
0
Fork 0
mirror of https://github.com/docker/docs.git synced 2026-04-12 06:19:22 +07:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1407 from londoncalling/voting-app-diagram

Browse Source 
added diagram to voting app tutorial
This commit is contained in:
Victoria Bialas
2017-01-26 22:09:19 -08:00
committed by GitHub
parent 93a9e29823 3d2c580203
commit cac6426535
3 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

BIN
engine/getstarted-voting-app/images/vote-app-diagram.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 48 KiB

BIN
engine/getstarted-voting-app/images/vote-app.sketch Normal file
View File

Binary file not shown.

10
engine/getstarted-voting-app/index.md
View File

@@ -37,7 +37,7 @@ In this tutorial, you'll learn how to:
* Use `docker machine` to create multiple virtual local hosts or
dockerized cloud servers
* Use `docker` commands to set up and run a swarm with manager and worker nodes
* Deploy the `vote` app by feeding our example `docker-stack.yml` file to
* Deploy the `vote` app services across the two nodes by feeding our example `docker-stack.yml` file to
the `docker stack deploy` command
* Test the app by voting for cats and dogs, and view the results
* Use the `visualizer` to explore and understand the runtime app and services
@@ -45,6 +45,8 @@ the `docker stack deploy` command
`vote` image to implement a poll on different choices
* Use features new in Compose Version 3, highlighted in the sample app
![voting app diagram](images/vote-app-diagram.png)
## Services and images overview
A service is a bit of executable code designed to accomplish
@@ -55,7 +57,7 @@ deploy it to a swarm and manage it as a distributed
multi-container application.
The voting app you are about to deploy is composed
of several services, each based on an image:
of several services, each based on an [image](/engine/reference/glossary.md#image):
| Service | Description | Base Image |
| ------------- |--------------| -----|
@@ -63,10 +65,10 @@ of several services, each based on an image:
| `result` | Displays the voting results via port 5001. Viewable at `<manager-IP>:5001` | Based on a Node.js image, `dockersamples/examplevotingapp_result` |
| `visualizer` | A web app that shows a map of the deployment of the various services across the available nodes via port `8080`. Viewable at `<manager-IP>:8080` | Based on a Node.js image, `dockersamples/visualizer` |
| `redis` | Collects raw voting data and stores it in a key/value queue | Based on a `redis` image, `redis:alpine` |
| `db` | A PostgreSQL service which provides permanent storage on a host volume | Based on a `postgres` image, `postgres:9.4` |
| `db` | A PostgreSQL service which provides permanent storage on a host volume | Based on a `postgres` image, `postgres:9.4` |
| `worker` | A background service that transfers votes from the queue to permanent storage | Based on a .NET image, `dockersamples/examplevotingapp_worker` |
Each service will run in its own container. Using swarm mode,
Each service will run in its own [container](/engine/reference/glossary.md#container). Using swarm mode,
we can also scale the application to deploy replicas
of containerized services distributed across multiple nodes.