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The code for lesson of Docker and Kubernetes

License: MIT License

Dockerfile 22.61% JavaScript 11.77% Shell 3.78% Python 52.47% PHP 9.37%

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step10のエラーについて

起きたエラーとその解決についてです。

step10/job_w_msg_broker/job-initiatorのDockerfileで

❯ docker build --tag job-init:0.1 .                                             
Sending build context to Docker daemon  5.632kB
Step 1/8 : FROM ubuntu:16.04
 ---> fab5e942c505
Step 2/8 : RUN apt-get update && apt-get install -y iputils-ping dnsutils curl apt-transport-https
 ---> Using cache
 ---> 0b58283dca4a
Step 3/8 : RUN curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
 ---> Using cache
 ---> 60f518ef63ea
Step 4/8 : RUN touch /etc/apt/sources.list.d/kubernetes.list
 ---> Using cache
 ---> 44b2cf6f7cd7
Step 5/8 : RUN echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | tee -a /etc/apt/sources.list.d/kubernetes.list
 ---> Using cache
 ---> 8fbf7875b01b
Step 6/8 : RUN apt-get update && apt-get install -y kubectl
 ---> Using cache
 ---> c2104daa4d32
Step 7/8 : RUN apt-get install -y python python-pip
 ---> Using cache
 ---> db0cf6cbd218
Step 8/8 : RUN pip install pika kubernetes
 ---> Running in 41b86f69832c
Collecting pika
  Downloading https://files.pythonhosted.org/packages/a1/ae/8bedf0e9f1c0c5d046db3a7428a4227fe36ec1b8e25607f3c38ac9bf513c/pika-1.1.0-py2.py3-none-any.whl (148kB)
Collecting kubernetes
  Downloading https://files.pythonhosted.org/packages/60/3f/2fef94fb65e8f94d768356e5fb9be222d18027e6167ccc65e2090917a771/kubernetes-11.0.0.tar.gz (724kB)
Collecting certifi>=14.05.14 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/5e/c4/6c4fe722df5343c33226f0b4e0bb042e4dc13483228b4718baf286f86d87/certifi-2020.6.20-py2.py3-none-any.whl (156kB)
Collecting six>=1.9.0 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/ee/ff/48bde5c0f013094d729fe4b0316ba2a24774b3ff1c52d924a8a4cb04078a/six-1.15.0-py2.py3-none-any.whl
Collecting python-dateutil>=2.5.3 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/d4/70/d60450c3dd48ef87586924207ae8907090de0b306af2bce5d134d78615cb/python_dateutil-2.8.1-py2.py3-none-any.whl (227kB)
Collecting setuptools>=21.0.0 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/2f/8e/38259f4a44944a92068d5ff77230511a4c685604b47a81318f9e5cf2cc24/setuptools-49.2.0.zip (2.2MB)
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "setuptools/__init__.py", line 21, in <module>
        import setuptools.version
      File "setuptools/version.py", line 1, in <module>
        import pkg_resources
      File "pkg_resources/__init__.py", line 1380
        raise SyntaxError(e) from e
                                ^
    SyntaxError: invalid syntax

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-XNeSDb/setuptools/
You are using pip version 8.1.1, however version 20.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

のエラーが発生しました。

Dockerfileに

RUN pip install --upgrade pip

を追加することで解決できました。

typo in webapi.js

// それまでは、HTTPS 200 OKを返します。

I think this is correct.

// それまでは、HTTPS 500 OKを返します。

codes_for_lessons/step07/hc-probe/webapl/webapl.js

Line 25 in b01ed81

// それまでは、HTTPS 200 OKを返します。

deployment3.ymlをapplyしてもunchangedになる

テキストP.203～ｐ.206（08.3 ロールアウト機能）の通りに、以下の通りに実行しております。
ロールアウト機能については概ね理解できたつもりなので、特別気になるほどではないですが、
結果がテキスト通りにはならなかったので記載させていただきます。

疑問１．操作１にてdiff を実行しても、結果がないのは、差分として扱われていないのでは？
疑問２. 操作４にて、unchangedとなるのは差分なしとされているからか？

操作１．
vagrant@master:~/codes_for_lessons/step08$ cp deployment2.yml deployment3.yml

操作２．
vagrant@master:~/codes_for_lessons/step08$ diff deployment2.yml deployment3.yml

操作３．

vagrant@master:~/codes_for_lessons/step08$ kubectl describe deployment web-deploy
Name:                   web-deploy
Namespace:              default
CreationTimestamp:      Tue, 05 May 2020 10:58:10 +0000
Labels:                 <none>
Annotations:            deployment.kubernetes.io/revision: 1
                        kubectl.kubernetes.io/last-applied-configuration:
                          {"apiVersion":"apps/v1","kind":"Deployment","metadata":{"annotations":{},"name":"web-deploy","namespace":"default"},"spec":{"replicas":10,...
Selector:               app=web
Replicas:               10 desired | 10 updated | 10 total | 10 available | 0 unavailable
StrategyType:           RollingUpdate
MinReadySeconds:        0
RollingUpdateStrategy:  25% max unavailable, 25% max surge
Pod Template:
  Labels:  app=web
  Containers:
   nginx:
    Image:        nginx:1.16
    Port:         <none>
    Host Port:    <none>
    Environment:  <none>
    Mounts:       <none>
  Volumes:        <none>
Conditions:
  Type           Status  Reason
  ----           ------  ------
  Progressing    True    NewReplicaSetAvailable
  Available      True    MinimumReplicasAvailable
OldReplicaSets:  <none>
NewReplicaSet:   web-deploy-7c74bc9bb8 (10/10 replicas created)
Events:
  Type    Reason             Age    From                   Message
  ----    ------             ----   ----                   -------
  Normal  ScalingReplicaSet  5m15s  deployment-controller  Scaled up replica set web-deploy-7c74bc9bb8 to 3
  Normal  ScalingReplicaSet  3m23s  deployment-controller  Scaled up replica set web-deploy-7c74bc9bb8 to 10

操作４．

vagrant@master:~/codes_for_lessons/step08$ kubectl apply -f deployment3.yml
deployment.apps/web-deploy unchanged

step13_13.4,13.5に関しまして

テキスト通りに構築はできたのですが、疎通確認でうまくいっておりません。原因わかりますでしょうか。
お忙しいところ恐れ入ります。

実施環境

Windows 10 ProfessionalEdition
32GB Memory
VirtualBox + Vagrant

実施状況

vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get node -o wide
NAME     STATUS   ROLES    AGE   VERSION    INTERNAL-IP    EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION       CONTAINER-RUNTIME
master   Ready    master   30d   v1.14.10   172.16.20.11   <none>        Ubuntu 18.04.6 LTS   4.15.0-187-generic   docker://18.6.1
node1    Ready    <none>   30d   v1.14.10   172.16.20.12   <none>        Ubuntu 18.04.6 LTS   4.15.0-187-generic   docker://18.6.1
node2    Ready    <none>   30d   v1.14.10   172.16.20.13   <none>        Ubuntu 18.04.6 LTS   4.15.0-187-generic   docker://18.6.1
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get ing -o wide
NAME            HOSTS                           ADDRESS   PORTS     AGE
hello-ingress   abc.sample.com,xyz.sample.com             80, 443   25m
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get service -o wide
NAME             TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)          AGE   SELECTOR
helloworld-svc   NodePort    10.32.0.80    <none>        8080:31445/TCP   26m   app=hello-world
java-svc         ClusterIP   10.32.0.29    <none>        9080/TCP         26m   app=liberty
kubernetes       ClusterIP   10.32.0.1     <none>        443/TCP          30d   <none>
nginx-svc        ClusterIP   10.32.0.240   <none>        9080/TCP         26m   app=nginx
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get deploy -o wide
NAME                    READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS              IMAGES                                           SELECTOR
helloworld-deployment   1/1     1            1           26m   hello-world-container   strm/helloworld-http                             app=hello-world
java-deployment         1/1     1            1           26m   open-liberty            openliberty/open-liberty:javaee8-ubi-min-amd64   app=liberty
nginx-deployment        3/3     3            3           26m   nginx                   nginx                                            app=nginx
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get rs -o wide
NAME                             DESIRED   CURRENT   READY   AGE   CONTAINERS              IMAGES                                           SELECTOR
helloworld-deployment-88fd567c   1         1         1       26m   hello-world-container   strm/helloworld-http                             app=hello-world,pod-template-hash=88fd567c
java-deployment-58c597d687       1         1         1       26m   open-liberty            openliberty/open-liberty:javaee8-ubi-min-amd64   app=liberty,pod-template-hash=58c597d687
nginx-deployment-56db997f77      3         3         3       26m   nginx                   nginx                                            app=nginx,pod-template-hash=56db997f77
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$ kubectl get pod -o wide
NAME                                   READY   STATUS    RESTARTS   AGE   IP            NODE    NOMINATED NODE   READINESS GATES
helloworld-deployment-88fd567c-c7b8n   1/1     Running   0          26m   10.244.1.21   node1   <none>           <none>
java-deployment-58c597d687-8gczp       1/1     Running   0          26m   10.244.1.23   node1   <none>           <none>
nginx-deployment-56db997f77-88x7p      1/1     Running   0          26m   10.244.1.22   node1   <none>           <none>
nginx-deployment-56db997f77-944zz      1/1     Running   0          26m   10.244.2.13   node2   <none>           <none>
nginx-deployment-56db997f77-rpd4l      1/1     Running   0          26m   10.244.2.14   node2   <none>           <none>
vagrant@master:~/work/gitbucket/hide1227/codes_for_lessons/step13/url-mapping$

Windows10 側で Chromeブラウザでの疎通確認は以下の状況です。

http://abc.sample.com/
　⇒　疎通せず。
http://abc.sample.com:31445/
　⇒　疎通します。
https://abc.sample.com/
　⇒　疎通せず。

http://abc.sample.com:31445/apl2/
　⇒　疎通せず。
http://xyz.sample.com:31445/
　⇒　疎通するが、helloworld-deployment が出てきてしまう。
http://xyz.sample.com/
　⇒　疎通せず。

Step10の7 Kubernetes APIライブラリの利用サンプルでエラーが発生しました。

P262のpythonのコードが上手く動作しなかったため、一度ご確認いただきたいです。

おこなった内容はminikube上で

$kubectl apply -f taskQueue-deploy
$docker build --tag job-init:0.1 ./job-initiator.py
$docker run -it --rm --name kube -v `pwd`/py:/py -v ~/.kube:/root/.kube -v ~/.minikube:/Users/[user名]/.minikube job-init:0.1 bash

コンテナを起動した後

root@ddbfd700e12c:/# cd py

root@ddbfd700e12c:/py# python job-initiator.py
Traceback (most recent call last):
  File "job-initiator.py", line 64, in <module>
    queue = create_queue()
  File "job-initiator.py", line 21, in create_queue
    conn = pika.BlockingConnection(qmgr_pram)
  File "/usr/local/lib/python2.7/dist-packages/pika/adapters/blocking_connection.py", line 359, in __init__
    self._impl = self._create_connection(parameters, _impl_class)
  File "/usr/local/lib/python2.7/dist-packages/pika/adapters/blocking_connection.py", line 450, in _create_connection
    raise self._reap_last_connection_workflow_error(error)
pika.exceptions.AMQPConnectionError

以上の内容のエラーが出ております。

step12 liberatorのイメージをビルドできない。

liberatorのイメージをビルド中に、エラーが発生する

$ docker build --tag gyuki1029/liberator:0.1 .
Sending build context to Docker daemon   5.12kB
Step 1/7 : FROM ubuntu:16.04
16.04: Pulling from library/ubuntu
8e097b52bfb8: Pull complete 
・
・
・
Step 4/7 : RUN pip install kubernetes
 ---> Running in f3e762382fea
Collecting kubernetes
  Downloading https://files.pythonhosted.org/packages/60/3f/2fef94fb65e8f94d768356e5fb9be222d18027e6167ccc65e2090917a771/kubernetes-11.0.0.tar.gz (724kB)
Collecting certifi>=14.05.14 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/5e/c4/6c4fe722df5343c33226f0b4e0bb042e4dc13483228b4718baf286f86d87/certifi-2020.6.20-py2.py3-none-any.whl (156kB)
Collecting six>=1.9.0 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/ee/ff/48bde5c0f013094d729fe4b0316ba2a24774b3ff1c52d924a8a4cb04078a/six-1.15.0-py2.py3-none-any.whl
Collecting python-dateutil>=2.5.3 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/d4/70/d60450c3dd48ef87586924207ae8907090de0b306af2bce5d134d78615cb/python_dateutil-2.8.1-py2.py3-none-any.whl (227kB)
Collecting setuptools>=21.0.0 (from kubernetes)
  Downloading https://files.pythonhosted.org/packages/38/cc/db23dbe4efc464c3c0111fedf7d46de8888f05b09488d610f6f8ab6e2544/setuptools-49.6.0.zip (2.2MB)
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "setuptools/__init__.py", line 19, in <module>
        import setuptools.version
      File "setuptools/version.py", line 1, in <module>
        import pkg_resources
      File "pkg_resources/__init__.py", line 1380
        raise SyntaxError(e) from e
                                ^
    SyntaxError: invalid syntax
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-EgwRl7/setuptools/
You are using pip version 8.1.1, however version 20.2.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The command '/bin/sh -c pip install kubernetes' returned a non-zero code: 1

takara9 / codes_for_lessons Goto Github PK

codes_for_lessons's People

Contributors

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Watchers

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codes_for_lessons's Issues

step10のエラーについて

typo in webapi.js

deployment3.ymlをapplyしてもunchangedになる

step13_13.4,13.5に関しまして

実施環境

実施状況

Step10の7 Kubernetes APIライブラリの利用サンプルでエラーが発生しました。

step12 liberatorのイメージをビルドできない。

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