这里分类和汇总了欣宸的全部原创(含配套源码):https://github.com/zq2599/blog_demos
OpenFaaS是来自Docker社区的一款Serverless框架,作用是为用户提供FaaS计算平台,官网:https://www.openfaas.com,下图来自官方:
《OpenFaaS实战》系列是欣宸的又一个实战型的原创系列,旨在与读者一起通过实战学习主流的Serverless知识,向着学以致用的目标前进,从最基础的部署开始,再由浅入深逐渐熟悉OpenFaaS的高级功能;
作为系列文章的开篇,本文的主要内容是OpenFaaS环境搭建和客户端工具的安装配置,分为以下几部分:
faas-netes是OpenFaaS的子项目,用于在Kubernetes环境实现OpenFaaS的功能,部署faas-netes常用的方式有三种:
接下来下载faas-netes的源码,使用其中的kubernetes资源配置文件进行部署;
yum install -y git
git clone https://github.com/openfaas/faas-netes
kubectl apply -f namespaces.yml
[root@node1 faas-netes]# kubectl apply -f namespaces.yml
namespace/openfaas created
namespace/openfaas-fn created
kubectl -n openfaas create secret generic basic-auth \
--from-literal=basic-auth-user=admin \
--from-literal=basic-auth-password=admin
kubectl apply -f ./yaml/
[root@node1 faas-netes]# kubectl apply -f ./yaml/
configmap/alertmanager-config created
deployment.apps/alertmanager created
service/alertmanager created
deployment.apps/basic-auth-plugin created
service/basic-auth-plugin created
serviceaccount/openfaas-controller created
role.rbac.authorization.k8s.io/openfaas-controller created
role.rbac.authorization.k8s.io/openfaas-profiles created
rolebinding.rbac.authorization.k8s.io/openfaas-controller created
rolebinding.rbac.authorization.k8s.io/openfaas-profiles created
customresourcedefinition.apiextensions.k8s.io/profiles.openfaas.com created
deployment.apps/faas-idler created
deployment.apps/gateway created
service/gateway-external created
service/gateway created
deployment.apps/nats created
service/nats created
customresourcedefinition.apiextensions.k8s.io/profiles.openfaas.com configured
configmap/prometheus-config created
deployment.apps/prometheus created
serviceaccount/openfaas-prometheus created
clusterrole.rbac.authorization.k8s.io/openfaas-prometheus created
rolebinding.rbac.authorization.k8s.io/openfaas-prometheus created
rolebinding.rbac.authorization.k8s.io/openfaas-prometheus created
service/prometheus created
deployment.apps/queue-worker created
[root@node1 faas-netes]# kubectl get pods -n openfaas
NAME READY STATUS RESTARTS AGE
alertmanager-dc4b8b67b-m8pkx 1/1 Running 0 66s
basic-auth-plugin-7bb7698cb4-d6zkl 1/1 Running 0 66s
faas-idler-df8c6d98d-p726g 0/1 CrashLoopBackOff 1 66s
gateway-775db4dbd4-dcvx9 1/2 Error 0 66s
nats-58d4d5db8d-km9jf 1/1 Running 0 66s
prometheus-8689d7dc98-dmjvs 1/1 Running 0 58s
queue-worker-5b4db6776f-hzl5q 1/1 Running 0 59s
[root@node1 faas-netes]# kubectl get pods -n openfaas
NAME READY STATUS RESTARTS AGE
alertmanager-dc4b8b67b-kl4wq 1/1 Running 0 10m
basic-auth-plugin-7bb7698cb4-ln6fx 1/1 Running 0 10m
faas-idler-df8c6d98d-xn68z 1/1 Running 2 10m
gateway-775db4dbd4-7l9h4 2/2 Running 1 10m
nats-58d4d5db8d-z7zzt 1/1 Running 0 10m
prometheus-8689d7dc98-9lk8t 1/1 Running 0 10m
queue-worker-5b4db6776f-nl999 1/1 Running 0 10m
[root@node1 faas-netes]# kubectl get service -n openfaas
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
alertmanager ClusterIP 10.233.27.131 <none> 9093/TCP 13m
basic-auth-plugin ClusterIP 10.233.21.234 <none> 8080/TCP 13m
gateway ClusterIP 10.233.34.151 <none> 8080/TCP 13m
gateway-external NodePort 10.233.62.82 <none> 8080:31112/TCP 13m
nats ClusterIP 10.233.28.109 <none> 4222/TCP 13m
prometheus ClusterIP 10.233.60.220 <none> 9090/TCP 13m
至此,部署完成,接下来验证环境是否可用
命令行工具也是非常重要的,尽管本章不用,也要装好为后面作准备;
curl -sL https://cli.openfaas.com | sh
Finding latest version from GitHub
0.12.18
Downloading package https://github.com/openfaas/faas-cli/releases/download/0.12.18/faas-cli as /tmp/faas-cli
Download complete.
Running with sufficient permissions to attempt to move faas-cli to /usr/local/bin
New version of faas-cli installed to /usr/local/bin
Creating alias 'faas' for 'faas-cli'.
___ _____ ____
/ _ \ _ __ ___ _ __ | ___|_ _ __ _/ ___|
| | | | '_ \ / _ \ '_ \| |_ / _` |/ _` \___ \
| |_| | |_) | __/ | | | _| (_| | (_| |___) |
\___/| .__/ \___|_| |_|_| \__,_|\__,_|____/
|_|
CLI:
commit: 9e3c15ef3ad7bd7cceb0cd577144aebb50c6681c
version: 0.12.18
echo export OPENFAAS_URL=192.168.133.187:31112 >> ~/.bashrc
faas-cli login -u admin -p admin
[root@node1 ~]# faas-cli list
Function Invocations Replicas
nodeinfo 2 1
如果您不想用OpenFaaS,需要彻底清理OpenFaaS,请执行如下操作:
kubectl delete secret basic-auth -n openfaas
kubectl delete -f ./yaml
kubectl delete namespace openfaas
至此,Kubernetes环境下OpenFaaS的部署就完成了,接下来的章节,咱们会重点实战OpenFaaS的函数能力;
如果您不想自己搭建kubernetes环境,推荐使用腾讯云容器服务TKE:无需自建,即可在腾讯云上使用稳定, 安全,高效,灵活扩展的 Kubernetes 容器平台;
如果您希望自己的镜像可以通过外网上传和下载,推荐腾讯云容器镜像服务TCR:像数据加密存储,大镜像多节点快速分发,跨地域镜像同步
微信搜索「程序员欣宸」,我是欣宸,期待与您一同畅游Java世界...
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。