######k8s构建python应用(django)
mkdir -p pydemo && cd pydemo
cat >Dockerfile <<EOF
FROM centos:6.8
RUN mkdir -p /data/soft && cd /data/soft
RUN yum install -y vim net-tools zip wget curl python-setuptools gcc unzip zlib zlib-devel openssh-clients tree crontabs
RUN yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel expat-devel
RUN [ "$(/usr/bin/python -V 2>&1 |awk '{print $2}')" != "2.7.15" ] && ([ ! -e Python-2.7.15.tgz ] && wget http://indoor.xxxx.com/download/centos/Python-2.7.15.tgz ) && tar zxf Python-2.7.15.tgz && cd Python-2.7.15 && ./configure && make && make install && mv -f /usr/bin/python /usr/bin/python2.6 && ln -sf /usr/local/bin/python2.7 /usr/bin/python && sed -i 's/^#!\/usr\/bin\/python$/#!\/usr\/bin\/python2.6/g' /usr/bin/yum
RUN yum install -y python-setuptools
RUN [ ! -e /usr/local/bin/pip -a ! -e /usr/bin/pip ] && (curl -sl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python get-pip.py)
RUN pip install django==1.9.7
RUN pip install pymysql
RUN pip install python-crontab
RUN pip install pexpect
RUN pip install dwebsocket==0.4.2
RUN pip install chardet
RUN pip install psutil
RUN pip install paramiko
RUN cd /data && django-admin.py startproject pydir && tree -if
EXPOSE 8080
CMD service crond start && python /data/pydir/manage.py makemigrations --merge && python /data/pydir/manage.py migrate && python /data/pydir/manage.py runserver 0.0.0.0:8080
EOF
#############################构建镜像
docker build . -t k.xxxx.com:5000/py-web6.8:0
#############################上传到镜像仓库
docker push k.xxxx.com:5000/py-web6.8:0
##############################k8s 启动服务
cat >pydemo.yaml <<EOF
apiVersion: v1
kind: Service
metadata:
name: pydemo
namespace: default
spec:
selector:
app: pydemo
ports:
- port: 80
targetPort: 8080
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: pydemo
namespace: default
spec:
replicas: 1
selector:
matchLabels:
app: pydemo
template:
metadata:
labels:
app: pydemo
spec:
containers:
- name: pydemo
image: k.xxxx.com:5000/py-web6.8:0
ports:
- containerPort: 8080
volumeMounts:
- name: pydir
mountPath: /data/pydir
volumes:
- name: pydir
hostPath:
path: /data/pydir/vpnmgt
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-pydemo
namespace: default
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: vpn.testweb.com
http:
paths:
- path: /
backend:
serviceName: pydemo
servicePort: 80
EOF
kubectl apply -f pydemo.yaml
kubectl get pods -o wide
###
kubectl describe pod $(kubectl get pods |grep pydemo |awk '{print $1}')
####查看日志
kubectl logs -f $(kubectl get pods |grep pydemo |awk '{print $1}')
####
kubectl get ingress