From 4351084181570c7082857018ea5ad676fb1d7105 Mon Sep 17 00:00:00 2001 From: chenguoyan01 Date: Mon, 31 Oct 2016 19:00:48 +0800 Subject: [PATCH] Add PaddlePaddle QuickStart Demo on Kubernetes --- .../build_and_install/paddle_on_kubernetes.md | 190 ++++++++++++++++++ 1 file changed, 190 insertions(+) create mode 100644 doc_cn/build_and_install/paddle_on_kubernetes.md diff --git a/doc_cn/build_and_install/paddle_on_kubernetes.md b/doc_cn/build_and_install/paddle_on_kubernetes.md new file mode 100644 index 0000000000..b7609c24c9 --- /dev/null +++ b/doc_cn/build_and_install/paddle_on_kubernetes.md @@ -0,0 +1,190 @@ +# Paddle On Kubernetes + +## 制作Docker镜像 + + 本文使用QucikStart的例子来作为镜像，详细的Paddle镜像请参考[Docker installation guide](http://www.paddlepaddle.org/doc/build/docker_install.html),使用paddledev/paddle:cpu-demo-latest作为基础镜像。 + +### 运行容器 + +``` +$ docker run --name quick_start_data -it paddledev/paddle:cpu-demo-latest +``` +进入容器`/root/paddle/demo/quick_start/data`目录，使用`get_data.sh`下载数据 + +``` +$ root@fbd1f2bb71f4:~/paddle/demo/quick_start/data# ./get_data.sh + +Downloading Amazon Electronics reviews data... +--2016-10-31 01:33:43-- http://snap.stanford.edu/data/amazon/productGraph/categoryFiles/reviews_Electronics_5.json.gz +Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80 +Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected. +HTTP request sent, awaiting response... 200 OK +Length: 495854086 (473M) [application/x-gzip] +Saving to: 'reviews_Electronics_5.json.gz' + + 0% [ ] 874,279 64.7KB/s eta 2h 13m + +``` + +下载完数据后，修改`/root/paddle/demo/quick_start/train.sh`文件，内容如下（增加了一条cd命令） +``` +set -e +cd /root/paddle/demo/quick_start +cfg=trainer_config.lr.py +#cfg=trainer_config.emb.py +#cfg=trainer_config.cnn.py +#cfg=trainer_config.lstm.py +#cfg=trainer_config.bidi-lstm.py +#cfg=trainer_config.db-lstm.py +paddle train \ + --config=$cfg \ + --save_dir=./output \ + --trainer_count=4 \ + --log_period=20 \ + --num_passes=15 \ + --use_gpu=false \ + --show_parameter_stats_period=100 \ + --test_all_data_in_one_period=1 \ + 2>&1 | tee 'train.log' +``` + +### 提交镜像 + +下载完数据后，退出容器，使用`docker commit`命令创建新镜像。 + +``` +$ docker commit quick_start_data mypaddle/paddle:quickstart +``` + +## 使用 Kubernetes 进行训练 + +### 编写yaml文件 + +在训练时，输出结果可能会随着容器的消耗而被删除，需要在创建Job时，挂载卷。使用前面构造的镜像，可以创建一个Kubernetes Job，简单的yaml文件如下： + +``` +apiVersion: batch/v1 +kind: Job +metadata: + name: quickstart +spec: + parallelism: 1 + completions: 1 + template: + metadata: + name: quickstart + spec: + volumes: + - name: output + hostPath: + path: /home/work/paddle_output + containers: + - name: pi + image: mypaddle/paddle:quickstart + command: ["bin/bash", "-c", "/root/paddle/demo/quick_start/train.sh"] + volumeMounts: + - name: output + mountPath: /root/paddle/demo/quick_start/output + restartPolicy: Never +``` + +### 创建Paddle Job + +使用上文创建的yaml文件创建kubernetes job，命令为： + +``` +$ kubectl create -f paddle.yaml +``` + +查看job的详细情况： + +``` +$ kubectl get job +NAME DESIRED SUCCESSFUL AGE +quickstart 1 0 58s + +$ kubectl describe job quickstart +Name: quickstart +Namespace: default +Image(s): registry.baidu.com/public/paddle:cpu-demo-latest +Selector: controller-uid=f120da72-9f18-11e6-b363-448a5b355b84 +Parallelism: 1 +Completions: 1 +Start Time: Mon, 31 Oct 2016 11:20:16 +0800 +Labels: controller-uid=f120da72-9f18-11e6-b363-448a5b355b84,job-name=quickstart +Pods Statuses: 0 Running / 1 Succeeded / 0 Failed +Volumes: + output: + Type: HostPath (bare host directory volume) + Path: /home/work/paddle_output +Events: + FirstSeen LastSeen Count From SubobjectPath Type Reason Message + --------- -------- ----- ---- ------------- -------- ------ ------- + 1m 1m 1 {job-controller } Normal SuccessfulCreate Created pod: quickstart-fa0wx +``` + +### 查看训练结果 + +根据job对应的pod信息，可以查看此Pod运行的宿主机。 + +``` +kubectl describe pod quickstart-fa0wx +Name: quickstart-fa0wx +Namespace: default +Node: paddle-demo-let02/10.206.202.44 +Start Time: Mon, 31 Oct 2016 11:20:17 +0800 +Labels: controller-uid=f120da72-9f18-11e6-b363-448a5b355b84,job-name=quickstart +Status: Succeeded +IP: 10.0.0.9 +Controllers: Job/quickstart +Containers: + quickstart: + Container ID: docker://b8561f5c79193550d64fa47418a9e67ebdd71546186e840f88de5026b8097465 + Image: registry.baidu.com/public/paddle:cpu-demo-latest + Image ID: docker://18e457ce3d362ff5f3febf8e7f85ffec852f70f3b629add10aed84f930a68750 + Port: + Command: + bin/bash + -c + /root/paddle/demo/quick_start/train.sh + QoS Tier: + cpu: BestEffort + memory: BestEffort + State: Terminated + Reason: Completed + Exit Code: 0 + Started: Mon, 31 Oct 2016 11:20:20 +0800 + Finished: Mon, 31 Oct 2016 11:21:46 +0800 + Ready: False + Restart Count: 0 + Environment Variables: +Conditions: + Type Status + Ready False +Volumes: + output: + Type: HostPath (bare host directory volume) + Path: /home/work/paddle_output +``` + +登录宿主机，查看结果。 + +``` +[root@paddle-demo-let02 paddle_output]# ll +total 60 +drwxr-xr-x 2 root root 4096 Oct 31 11:20 pass-00000 +drwxr-xr-x 2 root root 4096 Oct 31 11:20 pass-00001 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00002 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00003 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00004 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00005 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00006 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00007 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00008 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00009 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00010 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00011 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00012 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00013 +drwxr-xr-x 2 root root 4096 Oct 31 11:21 pass-00014 +``` \ No newline at end of file -- GitLab