$ go get github.com:hb-go/echo-web

# 编辑mirrors.yaml，或命令行glide mirror set [original] [replacement] --vcs [type]
$ vi ~/.glide/mirrors.yaml

# 查看glide mirror
$ glide mirror list

$ cd $GOPATH/src/github.com/hb-go
$ glide install

# ./conf/conf.toml
[database]
name = "goweb_db"
user_name = "goweb_dba"
pwd  = "123456"
host = "127.0.0.1"
port = "3306"

# 测试数据库SQL脚本
./echo-web/res/db_structure.sql

# ./conf/conf.toml
[redis]
server = "127.0.0.1:6379"
pwd = "123456"

[memcached]
server = "localhost:11211"

# ./conf/conf.toml
[server]
addr = ":8080"
domain_api = "echo.api.localhost.com"
domain_web = "echo.www.localhost.com"
domain_socket = "echo.socket.localhost.com"

# 改host
$ vi /etc/hosts
127.0.0.1       echo.api.localhost.com
127.0.0.1       echo.www.localhost.com
127.0.0.1       echo.www.localhost.com

# Nginx配置，可选
server{
    listen       80;
    server_name  echo.www.localhost.com echo.api.localhost.com echo.socket.localhost.com;

    charset utf-8;

    location / {
        proxy_pass http://127.0.0.1:8080;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header Host $host;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

# 首次运行必须带 -a -t，更新assets.go、template.go的资源路径为本地
$ ./run.sh [-a] [-t]        # -a -t 可选(须安装Bindata)，以debug方式更新assets、template的Bindata资源包

# 浏览器访问
http://echo.www.localhost.com      # Nginx代理
http://echo.www.localhost.com:8080 # 无代理

# OpenTracing
http://localhost:8700/traces

# 打包
$ ./build.sh 		    # 默认本机
$ ./build.sh -l		    # 打包Linux平台

# 运行
$ ./echo-web -c conf/conf.toml      # -c指定配置文件，默认conf/conf.toml

assets          Web服务静态资源
conf            项目配置
middleware      中间件
model           模型，数据库连接&ORM
  └ orm         ORM扩展
module          模块封装
  ├ auth        Auth授权
  ├ cache       缓存
  ├ log         日志
  ├ render      渲染
  ├ session     Session
  └ tmpl        Web模板
res             项目资源
  └ db          数据
router          路由
  └ api         接口路由
    ├context    自定义Context，便于扩展API层扩展
    └router     路由
  ├ socket      socket示范
  └ web         Web路由
    ├context    自定义Context，便于扩展Webb层扩展
    └router     路由        
template        模板
  └ pongo2      pongo2模板
util            公共工具
  ├ conv        类型转换
  ├ crypt       加/解密
  └ sql         SQL

# Max open files问题，修改supervisord配置
$ vi /etc/supervisor/supervisord.conf
[supervisord]
minfds = 10240

$ vi /etc/supervisor/conf.d/echo-web.conf

[program:echo-web]
directory = /{path}/echo-web                                            ; 程序的启动目录
command =  /{path}/echo-web/echo-web -c /{path}/echo-web/conf/conf.toml ; 启动命令，与手动在命令行启动的命令是一样的
process_name=%(program_name)s                                           ; process_name expr (default %(program_name)s)
numprocs=1           ; number of processes copies to start (def 1)
autostart = true     ; 在 supervisord 启动的时候也自动启动
startsecs = 5        ; 启动 5 秒后没有异常退出，就当作已经正常启动了
autorestart = true   ; 程序异常退出后自动重启
startretries = 3     ; 启动失败自动重试次数，默认是 3
user = root          ; 用哪个用户启动
redirect_stderr = true          ; 把 stderr 重定向到 stdout，默认 false
stdout_logfile_maxbytes = 20MB  ; stdout 日志文件大小，默认 50MB
stdout_logfile_backups = 7      ; stdout 日志文件备份数
; stdout 日志文件，需要注意当指定目录不存在时无法正常启动，所以需要手动创建目录（supervisord 会自动创建日志文件）
stdout_logfile = /var/log/echo-web/stdout.log
; 这一配置项的作用是：如果supervisord管理的进程px又产生了若干子进程，使用supervisorctl停止px进程，停止信号会传播给px产生的所有子进程，确保子进程也一起停止。这一配置项对希望停止所有进程的需求是非常有用的。
stopasgroup=false
killasgroup=false
environment=GOGC=1000

# 安装confd
$ go get github.com/kelseyhightower/confd

# 将配置写入etcd，统一前缀echo-web
$ etcdctl ls --recursive --sort /echo-web
/echo-web/app
/echo-web/app/name
......
/echo-web/tmpl/suffix
/echo-web/tmpl/type

$ cd {pwd}/echo-web
$ confd -onetime -confdir conf  -backend etcd -node http://127.0.0.1:4001 -prefix echo-web

[opentracing]
disable = false

# jaeger or appdash
type = "jaeger"

# jaeger serviceName
service_name = "echo-web"

# jaeger-agent 127.0.0.1:6831
# appdash http://localhost:8700
address = "127.0.0.1:6831"

[metrics]
disable = false
freq_sec = 10
address = "127.0.0.1:2003"  # Graphite

docker run --name grafana -d -p 3000:3000 grafana/grafana

docker run -d --name prometheus -p 9090:9090 -v ~/tmp/prometheus.yml:/etc/prometheus/prometheus.yml \
              prom/prometheus
              
# Dashboard JSON
# middleware/metrics/prometheus/grafana.json

# 创建镜像，注意修改配置
$ docker build -t hbchen/echo-web:v0.0.1 .

# 运行容器
$ docker run  \
     -p 8080:8080 \
     --name=echo-web \
     hbchen/echo-web:v0.0.1

# 如果是服务在宿主机需要配置服务IP为主机IP，127.0.0.1/localhost网络不通

# hbchen/echo-web使用的配置，在宿主机host上做个映射(192.168.1.8为主机IP)
# 192.168.1.8 mysql.localhost.com
# 192.168.1.8 redis.localhost.com
# 192.168.1.8 memcached.localhost.com
[database]
host = "mysql.localhost.com"

[redis]
server = "redis.localhost.com:6379"

[memcached]
server = "memcached.localhost.com:11211"

$ vi ~/.profile

# 添加
grep -v "etcd.localhost.com\|consul.localhost.com\|mysql.localhost.com\|redis.localhost.com\|memcached.localhost.com" /etc/hosts > ~/hosts_temp
cat ~/hosts_temp > /etc/hosts
LC_ALL=C ifconfig en0 | grep 'inet ' | cut -d ' ' -f2 | awk '{print $1 " etcd.localhost.com\n" $1 " consul.localhost.com\n" $1 " mysql.localhost.com\n"$1     " redis.localhost.com\n" $1 " memcached.localhost.com"}' >> /etc/hosts

# 修改配置或切换网络时更新
$ source ~/.profile

$ go get -u github.com/google/pprof

$ pprof -http=[host]:[port] [main_binary] profile.pb.gz

# 使用echo-web演示
$ pprof -http=localhost:8080 --alloc_space http://echo.www.hbchen.com/debug/pprof/heap