随时笔记

学习笔记

ldd 命令来看到动态链接库 ldd $GOPATH/bin/helloworld

创建在 Go 中的可执行静态链接
CGO_ENABLED=0 go get -a -ldflags '-s' github.com/adriaandejonge/helloworld

CGO_ENABLED 环境变量告诉 Go 使用 cgo 编译器而不是 go 编译器。-a 参数告诉 GO 重薪构建所有的依赖。否则的话你将以动态链接依赖结束。最后的 -ldflags '-s' 参数是一个非常好的扩展。它大概降低了可执行文件 50% 的文件大小。你也可以不通过 cgo 使用这个。尺寸缩小是去除了调试信息的结果。

23 tid := ""
24 if md, ok := metadata.FromContext(ctx); ok {
25 tid = md["tid"][0]
26 }
27
28 start := time.Now()
29 log.Tinfof(tid, "calling User:Signup, user=%#v", user)
30 defer func() {
31 log.Tinfof(tid, "finished User:Signup, took=%v", time.Since(start))
32 }()
33
34 if user.LoginKind == pb.UserInfo_Na || user.LoginId == "" || user.Password == "" {
35 return &pb.UserResponse{Code: errs.ErrRequestFormat, Message: "input format error"}, nil
36 }
37
38 // First, check if the NEW user exists in database
39 var userId sql.NullString
40 err := DB.QueryRow(
41 SELECT id
42 FROM users
NORMAL ▶ user.go ▶ database/sql ▶ ◀ unix ❮ utf-8 ❮ go ◀ 5% ◀ ⁋ 7:6
?DB
85
86 // Insert new user to table, and return the id
87 err = DB.QueryRow(
88INSERT INTO users (login_kind, login_id, password, mobile, mei_id)
89 VALUES ($1,$2, $3,$4, $5) 90 RETURNING id`, 91 user.LoginKind, user.LoginId, hashedPassword, user.Mobile, meiId.String, 92 ).Scan(&userId) 93 if err != nil { 94 e := pb.UserResponse{Code: errs.ErrInternal, Message: "error on inserting new user"} 95 log.Terrorf(tid, "%s: %s", e.Message, err) 96 return &e, nil 97 } 98 if !userId.Valid { 99 e := pb.UserResponse{Code: errs.ErrInternal, Message: "returning invalid user id"} 100 log.Terrorf(tid, "%s: %s", e.Message, err) 101 return &e, nil 102 } 103 104 // Delete mei id from mei_ids 105 DB.Exec(`DELETE FROM mei_ids WHERE mei_id=$1`, meiId.String) 106 107 return &pb.UserResponse{Code: errs.Ok, User: &pb.UserInfo{Id: userId.String, MeiId: meiId.String}}, nil 108 } 109 110 func (us *userServer) LoginByWechat(ctx context.Context, user *pb.UserInfo) (*pb.UserResponse, error) { 111 return nil, nil 112 } 113 114 func (us *userServer) Verify(ctx context.Context, user *pb.UserInfo) (*pb.UserResponse, error) { 115 return nil, nil 116 } 117 118 func (us *userServer) GetUser(ctx context.Context, userId *pb.UserInfo) (*pb.UserResponse, error) { 119 return nil, nil 120 } 121 122 func (us *userServer) ResetPwd(ctx context.Context, user *pb.UserInfo) (*pb.UserResponse, error) { 123 return nil, nil 124 } 125 126 func (us *userServer) BindMobile(ctx context.Context, user *pb.UserInfo) (*pb.UserResponse, error) { NORMAL ▶ user.go ▶ Signup() ▶ ◀ unix ❮ utf-8 ❮ go ◀ 77% ◀ ⁋ 105:5 ?D 1 // Copyright 2015-2016, Wothing Co., Ltd. 2 // All rights reserved. 3 4 package main 5 6 import ( 7 "database/sql" 8 "time" 9 10 "golang.org/x/crypto/bcrypt" 11 "golang.org/x/net/context" 12 "google.golang.org/grpc/metadata" 13 14 "github.com/wothing/17mei/errs" 15 "github.com/wothing/17mei/pb" 16 "github.com/wothing/log" 17 ) 18 19 type userServer struct { 20 } 21 22 func (us *userServer) Signup(ctx context.Context, user *pb.UserInfo) (*pb.UserResponse, error) { 23 tid := "" 24 if md, ok := metadata.FromContext(ctx); ok { 25 tid = md["tid"][0] 26 } 27 28 start := time.Now() 29 log.Tinfof(tid, "calling User:Signup, user=%#v", user) 30 defer func() { 31 log.Tinfof(tid, "finished User:Signup, took=%v", time.Since(start)) 32 }() 33 34 if user.LoginKind == pb.UserInfo_Na || user.LoginId == "" || user.Password == "" { 35 return &pb.UserResponse{Code: errs.ErrRequestFormat, Message: "input format error"}, nil 36 } 37 38 // First, check if the NEW user exists in database 39 var userId sql.NullString 40 err := DB.QueryRow( 41 `SELECT id 42 FROM users NORMAL ▶ user.go ▶ database/sql ▶ ◀ unix ❮ utf-8 ❮ go ◀ 5% ◀ ⁋ 7:6 ?Db 37 38 // First, check if the NEW user exists in database 39 var userId sql.NullString 40 err := DB.QueryRow( 41 `SELECT id 42 FROM users 43 WHERE login_kind=$1 AND login_id=$2`, 44 user.LoginKind, user.LoginId, 45 ).Scan(&userId) 46 // err is nil, user exists in table 47 if err == nil { 48 return &pb.UserResponse{Code: errs.ErrUserExists, Message: "user exists already"}, nil 49 } 50 // err is not ErrNoRows, unexpect err when quuery database 51 if err != sql.ErrNoRows { 52 e := pb.UserResponse{Code: errs.ErrInternal, Message: "error on querying table 'user'"} 53 log.Terrorf(tid, "%s: %s", e.Message, err) 54 return &e, nil 55 } 56 57 // Hash password, we only store hashed password, not the clear text, in db. 58 hashedPassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost) 59 if err != nil { 60 e := pb.UserResponse{Code: errs.ErrInternal, Message: "error on generating hashed password"} 61 log.Terrorf(tid, "%s: %s", e.Message, err) 62 return &e, nil 63 } 64 65 // For mobile login, set the mobile to user login id 66 if user.LoginKind == pb.UserInfo_Mobile { 67 user.Mobile = user.LoginId 68 } 69 70 // Get a mei id from table mei_ids 71 var meiId sql.NullString 72 err = DB.QueryRow( 73 `UPDATE mei_ids 74 SET status=$1 75 WHERE mei_id=(SELECT mei_id FROM mei_ids WHERE status=$2 LIMIT 1) 76 RETURNING mei_id`, 77 MeiIdReservedByUsr, 78 MeiIdAvailable, NORMAL ▶ user.go ▶ Signup() ▶ ◀ unix ❮ utf-8 ❮ go ◀ 29% ◀ ⁋ 40:12 search hit TOP, continuing at BOTTOM 84 } [#42#root@6fcfbc69f8d0 ~/17mei/gateway]$ls controller main.go middleware misc pkcs8_private.pem public.pem README.md router test [#43#root@6fcfbc69f8d0 ~/17mei/gateway]$cd controller/ [#44#root@6fcfbc69f8d0 ~/17mei/gateway/controller]$ls activity.go diary.go diary_test.go handler_test.go mediastore.go service.go user.go [#45#root@6fcfbc69f8d0 ~/17mei/gateway/controller]$vim activity.go

[#1#root@6fcfbc69f8d0 ~/17mei/gateway/controller]$ls activity.go diary.go diary_test.go handler_test.go mediastore.go service.go user.go [#2#root@6fcfbc69f8d0 ~/17mei/gateway/controller]$cd ..
[#3#root@6fcfbc69f8d0 ~/17mei/gateway]$ls Press ENTER or type command to continue controller main.go middleware misc pkcs8_private.pem public.pem README.md router test [#4#root@6fcfbc69f8d0 ~/17mei/gateway]$cd ..
[#5#root@6fcfbc69f8d0 ~/17mei]$ls errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user [#6#root@6fcfbc69f8d0 ~/17mei]$cd user/
[#7#root@6fcfbc69f8d0 ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#8#root@6fcfbc69f8d0 ~/17mei/user]$vim user.go

[#1#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/gateway/controller]$ls activity.go diary.go diary_test.go handler_test.go mediastore.go service.go user.go [#2#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/gateway/controller]$cd ..
[#3#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/gateway]$ls controller main.go middleware misc pkcs8_private.pem public.pem README.md router test [#4#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/gateway]$cd ..
[#5#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei]$ls errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user [#6#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei]$cd pb/
[#7#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/pb]$ls activity.pb.go activity.proto diary.pb.go diary.proto mediastore.pb.go mediastore.proto user.pb.go user.proto [#8#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/pb]$vim activity.pb.go
[#9#root@6fcfbc69f8d0 /go/src/github.com/wothing/17mei/pb]$exit

Press ENTER or type command to continue
[#9#root@6fcfbc69f8d0 ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#10#root@6fcfbc69f8d0 ~/17mei/user]$cd ..
[#11#root@6fcfbc69f8d0 ~/17mei]$ls errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user [#12#root@6fcfbc69f8d0 ~/17mei]$cd user/
[#13#root@6fcfbc69f8d0 ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#14#root@6fcfbc69f8d0 ~/17mei/user]$vim user.go
[#15#root@6fcfbc69f8d0 ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#16#root@6fcfbc69f8d0 ~/17mei/user]$ssh
const.go db.go main.go meigen/ user.go user_test.go
[#16#root@6fcfbc69f8d0 ~/17mei/user]$ssh dmonit ssh: Could not resolve hostname dmonit: Name or service not known [#17#root@6fcfbc69f8d0 ~/17mei/user]$cd
[#18#root@6fcfbc69f8d0 ~]$ls 17mei 17mei-archive 17mei-design activity dotfiles FixLinux protobuf test [#19#root@6fcfbc69f8d0 ~]$exit

Press ENTER or type command to continue
[#46#root@6fcfbc69f8d0 ~/17mei/gateway/controller]$exit [#2#root@dmonit ~]$ls
bin
[#3#root@dmonit ~]$ssh usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec] [-D [bind_address:]port] [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11] [-i identity_file] [-L [bind_address:]port:host:hostport] [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port] [-Q cipher | cipher-auth | mac | kex | key] [-R [bind_address:]port:host:hostport] [-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]] [user@]hostname [command] [#4#root@dmonit ~]$ls
bin
[#5#root@dmonit ~]$cd bin/ [#6#root@dmonit ~/bin]$ls
dcreate de dip dkill pass
[#7#root@dmonit ~/bin]$cat pass
psql_pass:wothing17mei

ssh root@wothing.newb.xyz

docker run -dit\
--name=dmonit\
-h dmonit\
-p 445:22\
-v /Users/kooksee/share:/share\
-v /usr/local/bin/docker:/usr/local/bin/docker\
-v /var/run/docker.sock:/var/run/docker.sock\
-e 'PUBKEY=ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDZouXRF/aEB0VIyUGjDJSphklJMvriEcooqMLpQw55bbVHlWwA5gq/UGl4BI6ZAkEyk18S88RYWunsM+FbcHaaxhfwNTSQ9rXHK6Nr/J26PBLKMcYWyNtAWrgqk8vKhvXvRw6XYhUlgVC0SE1vAMpovqIhHArFu5JhDlk8C/WeE50lIc9ek9+dl8yjX5Nbujc/5V7ELzuCALLjvjcjozL0goAvn6hLO9ZXqeIC6D4MFWTxcKW4hcbdgzUAzlSNIhuXABedxg/uL5qseoi7Qm9WM0zPqDQF5xXJM34DPeHrib6NXen8K9rMKGh26PuHz5o/xGPOy/QWvfO0HAI8HdJx kooksee@kooksee.local' dmonit

docker run -it --name kkk -d -p 445:22 -v /usr/local/bin/docker:/usr/local/bin/docker -v /var/run/docker.sock:/var/run/docker.sock -e 'PUBKEY=ssh-rsa XXXX' index.tenxcloud.com/philo/dmonit:1.0
[#8#root@dmonit ~/bin]$ssh root@wothing.newb.xyz
The authenticity of host 'wothing.newb.xyz (139.196.110.104)' can't be established.
ECDSA key fingerprint is 08:1d:db:e4:d2:e0:87:89:ed:ca:69:82:17:6a:83:57.
Are you sure you want to continue connecting (yes/no)? yes

▽
Warning: Permanently added 'wothing.newb.xyz,139.196.110.104' (ECDSA) to the list of known hosts.
root@wothing.newb.xyz's password:

[#9#root@dmonit ~/bin]$de golang

▽
[#1#root@6fcfbc69f8d0 /go]$ssh root@wothing.newb.xyz
Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-32-generic x86_64)

• Documentation: https://help.ubuntu.com/

Welcome to aliyun Elastic Compute Service!

Last login: Mon Feb 22 19:49:52 2016 from 116.231.27.194
root@wothingdev:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
08fa8a14b6ba ubuntu:14.04 "/app/mediastore.exe " 2 hours ago Up 2 hours prod-mediastore
4834bd094f24 index.tenxcloud.com/philo/dmonit:1.1 "/bin/sh -c 'service " 3 hours ago Up 3 hours 0.0.0.0:3003->3003/tcp, 0.0.0.0:447->22/tcp test-tiancai
38e91655788b index.tenxcloud.com/philo/dmonit:1.1 "/bin/sh -c 'service " 5 hours ago Up 5 hours 0.0.0.0:3002->3002/tcp, 0.0.0.0:446->22/tcp test-likun
1a42097fca2e postgres:9.5.1 "/docker-entrypoint.s" 6 hours ago Up 6 hours 0.0.0.0:15432->5432/tcp test-postgres
3b2b4811574b redis "/entrypoint.sh redis" 6 hours ago Up 6 hours 0.0.0.0:32768->6379/tcp test-redis
f2f8b60aa97c ubuntu:14.04 "/bin/ccc" 24 hours ago Up 24 hours 0.0.0.0:53->53/tcp dns
08df111a1ae8 golangdev:1.2.3 "/bin/bash" 2 days ago Up 2 days builder
cec03c25c392 ubuntu:14.04 "/app/gw.exe --ch con" 3 days ago Up About an hour prod-gw
6884eceb53de nginx "nginx -g 'daemon off" 3 days ago Up 2 days 443/tcp, 0.0.0.0:3000->80/tcp nnn
8847fb7684fd ubuntu:14.04 "/app/user.exe -dh pr" 3 days ago Up About an hour prod-user
6b7cbee927f0 postgres:9.5.1 "/docker-entrypoint.s" 3 days ago Up 3 days 5432/tcp prod-postgres
f3432f294784 ubuntu:14.04 "/bin/bash" 3 days ago Up 3 days brew
5032e0173852 ubuntu:14.04 "/bin/consul agent -b" 4 days ago Up 4 days 0.0.0.0:8500->8500/tcp consul
root@wothingdev:~# de
de debconf-apt-progress debconf-escape deb-systemd-helper declare deluser
deallocvt debconf-communicate debconf-set-selections deb-systemd-invoke delgroup depmod
debconf debconf-copydb debconf-show debugfs delpart dequote
root@wothingdev:~# ls
17mei brew consulData consulstatic git nginx pac pull.sh sss
root@wothingdev:~# cd sss/
root@wothingdev:~/sss# ls
conoha.sh pac
root@wothingdev:~/sss# cd pac/
root@wothingdev:~/sss/pac# ls
a.pac
root@wothingdev:~/sss/pac# vim a.pac
root@wothingdev:~/sss/pac# cd ..
root@wothingdev:~/sss# ls

▽
conoha.sh pac
root@wothingdev:~/sss# vim conoha.sh
root@wothingdev:~/sss# ls
conoha.sh pac
root@wothingdev:~/sss# cd ..
Press ENTER or type command to continue
root@wothingdev:~# ls
17mei brew consulData consulstatic git nginx pac pull.sh sss
root@wothingdev:~# cd 17mei/
root@wothingdev:~/17mei# ls
errs gateway Makefile pb PULL_REQUEST_TEMPLATE.md README.md sql user
root@wothingdev:~/17mei# cd ..
root@wothingdev:~# ls
17mei brew consulData consulstatic git nginx pac pull.sh sss
root@wothingdev:~# de test-tiancai
EOF
root@wothingdev:~# cd sss/
root@wothingdev:~/sss# ls
conoha.sh pac
root@wothingdev:~/sss# cd
root@wothingdev:~# which de
root@wothingdev:~# ls
17mei brew consulData consulstatic git nginx pac pull.sh sss
root@wothingdev:~# ll
total 96
drwx------ 14 root root 4096 Feb 22 19:57 ./
drwxr-xr-x 23 root root 4096 Feb 19 12:24 ../
drwxr-xr-x 8 root root 4096 Feb 19 17:24 17mei/
-rw------- 1 root root 18239 Feb 22 18:11 .bash_history
-rw-r--r-- 1 root root 3146 Feb 19 12:23 .bashrc
drwxr-xr-x 11 root root 4096 Feb 19 14:21 brew/
drwx------ 2 root root 4096 Jan 30 2015 .cache/
drwx------ 3 root root 4096 Feb 17 20:33 .config/
drwxr-xr-x 2 root root 4096 Feb 18 15:11 consulData/
drwxr-xr-x 3 root root 4096 Feb 18 15:05 consulstatic/
drwxr-xr-x 3 root root 4096 Feb 21 19:33 git/
drwxr-xr-x 3 root root 4096 Feb 20 12:30 nginx/
drwxr-xr-x 2 root root 4096 Feb 22 14:35 pac/
-rw-r--r-- 1 root root 140 Feb 20 2014 .profile
-rw-r--r-- 1 root root 118 Feb 17 20:28 pull.sh
drwx------ 2 root root 4096 Feb 22 16:57 .ssh/
drwxr-xr-x 3 root root 4096 Feb 22 19:57 sss/
drwxr-xr-x 2 root root 4096 Feb 18 14:43 .vim/
-rw------- 1 root root 4707 Feb 22 19:57 .viminfo
root@wothingdev:~# vim .bashrc

root@wothingdev:~# pwd
/root
root@wothingdev:~# exit

Press ENTER or type command to continue
root@wothingdev:~# ls
17mei brew consulData consulstatic git nginx pac pull.sh sss

▽
docker -it exec $1 bash root@wothingdev:~# mkdir bin root@wothingdev:~# touch b bin/ brew/ root@wothingdev:~# touch b bin/ brew/ root@wothingdev:~# touch bin/de root@wothingdev:~# cd brew/ root@wothingdev:~/brew# ls bin Cellar CODEOFCONDUCT.md CONTRIBUTING.md etc include lib lib64 Library LICENSE.txt opt README.md share SUPPORTERS.md root@wothingdev:~/brew# cd bin/ root@wothingdev:~/brew/bin# ls 2to3 c_rehash easy_install-2.7 gdbmtool makedepend openssl pip2 python python2-config sqlite3 tput wheel xslt-config brew curl funzip idle mycli patch pip2.7 python2 python-config tabs tset xml2-config xsltproc captoinfo curl-config gdbm_dump infocmp ncurses6-config patchelf pkg-config python2.7 reset tic unzip xmlcatalog zipgrep clear easy_install gdbm_load infotocap ncursesw6-config pip pydoc python2.7-config smtpd.py toe unzipsfx xmllint zipinfo root@wothingdev:~/brew/bin# cd root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 08fa8a14b6ba ubuntu:14.04 "/app/mediastore.exe " 2 hours ago Up 2 hours prod-medias ▽ docker exec -it$1 bash
tore
4834bd094f24 index.tenxcloud.com/philo/dmonit:1.1 "/bin/sh -c 'service " 3 hours ago Up 3 hours 0.0.0.0:3003->3003/tcp, 0.0.0.0:447->22/tcp test-tiancai
38e91655788b index.tenxcloud.com/philo/dmonit:1.1 "/bin/sh -c 'service " 6 hours ago Up 6 hours 0.0.0.0:3002->3002/tcp, 0.0.0.0:446->22/tcp test-likun
1a42097fca2e postgres:9.5.1 "/docker-entrypoint.s" 6 hours ago Up 6 hours 0.0.0.0:15432->5432/tcp test-postgres
3b2b4811574b redis "/entrypoint.sh redis" 6 hours ago Up 6 hours 0.0.0.0:32768->6379/tcp test-redis

▽

f2f8b60aa97c ubuntu:14.04 "/bin/ccc" 24 hours ago Up 24 hours 0.0.0.0:53->53/tcp dns
08df111a1ae8 golangdev:1.2.3 "/bin/bash" 2 days ago Up 2 days builder
cec03c25c392 ubuntu:14.04 "/app/gw.exe --ch con" 3 days ago Up 2 hours prod-gw
6884eceb53de nginx "nginx -g 'daemon off" 3 days ago Up 2 days 443/tcp, 0.0.0.0:3000->80/tcp nnn
8847fb7684fd ubuntu:14.04 "/app/user.exe -dh pr" 3 days ago Up 2 hours prod-user
6b7cbee927f0 postgres:9.5.1 "/docker-entrypoint.s" 3 days ago Up 3 days 5432/tcp prod-postgres
f3432f294784 ubuntu:14.04 "/bin/bash" 3 days ago Up 3 days brew
5032e0173852 ubuntu:14.04 "/bin/consul agent -b" 4 days ago Up 4 days 0.0.0.0:8500->8500/tcp consul
root@wothingdev:~# vim b
bin/ brew/

▽
de test-tiancai
root@wothingdev:~# vim b
bin/ brew/
root@wothingdev:~# vim bin/de
root@wothingdev:~# chmod 777 bin/de
root@wothingdev:~# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
golangdev 1.2.3 eda771c633cd 3 days ago 1.045 GB
index.alauda.cn/philo/golangdev 1.2.3 eda771c633cd 3 days ago 1.045 GB
index.alauda.cn/library/redis latest fb46ec1d66e0 5 days ago 151.3 MB
redis latest fb46ec1d66e0 5 days ago 151.3 MB
postgres 9.5.1 da194fb234df 5 days ago 264.1 MB
postgres 9.5 1986535a6597 6 days ago 264.1 MB
nginx latest 69203b7cd029 10 days ago 134.6 MB
mongo latest a5d16d62f4cf 3 weeks ago 317.4 MB
ubuntu 14.04 3876b81b5a81 4 weeks ago 187.9 MB
dmonit 1.1 5c03c096139b 7 weeks ago 452.7 MB
index.tenxcloud.com/philo/dmonit 1.1 5c03c096139b 7 weeks ago 452.7 MB
index.tenxcloud.com/philo/golangdev 1.2.1 02fcb4788207 10 weeks ago 1.008 GB
php 5.6 6977e8a80e46 10 weeks ago 444.2 MB

▽
docker exec -it test-tiancai bash
node slim 818096aa5eed 10 weeks ago 205.7 MB
php 7 c89ab23b3e82 4 months ago 484.7 MB
root@wothingdev:~# de test-tiancai
EOF
root@wothingdev:~# docker exec -it test-tiancai bash
[#1#root@4834bd094f24 /]$exit root@wothingdev:~# vim bin/de root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# de de debconf-apt-progress debconf-escape deb-systemd-helper declare deluser deallocvt debconf-communicate debconf-set-selections deb-systemd-invoke delgroup depmod debconf debconf-copydb debconf-show debugfs delpart dequote root@wothingdev:~# vim .bashrc root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# cd bin/ root@wothingdev:~/bin# ls de root@wothingdev:~/bin# touch tiancai root@wothingdev:~/bin# vim tiancai root@wothingdev:~/bin# chmod 777 tiancai root@wothingdev:~/bin# cd root@wothingdev:~# bash root@wothingdev:~# tiancai /root/bin/de: line 1: docker: command not found root@wothingdev:~# vim b bin/ brew/ root@wothingdev:~# vim bin/ de tiancai root@wothingdev:~# vim bin/tiancai Command 'vim' is available in '/usr/bin/vim' The command could not be located because '/usr/bin' is not included in the PATH environment variable. vim: command not found root@wothingdev:~# vim bin/tiancai Command 'vim' is available in '/usr/bin/vim' The command could not be located because '/usr/bin' is not included in the PATH environment variable. vim: command not found root@wothingdev:~# exit root@wothingdev:~# vim bin/tiancai root@wothingdev:~# ls 17mei bin brew consulData consulstatic git nginx pac pull.sh sss root@wothingdev:~# chmod 777 bin/tiancai root@wothingdev:~# ls bin/ de tiancai root@wothingdev:~# de de debconf-apt-progress debconf-escape deb-systemd-helper declare deluser deallocvt debconf-communicate debconf-set-selections deb-systemd-invoke delgroup depmod debconf debconf-copydb debconf-show debugfs delpart dequote root@wothingdev:~# echo$0
-bash
root@wothingdev:~# logout
Connection to wothing.newb.xyz closed.
[#2#root@6fcfbc69f8d0 /go]$ssh root@wothing.newb.xyz
Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-32-generic x86_64)

• Documentation: https://help.ubuntu.com/

Welcome to aliyun Elastic Compute Service!

Last login: Mon Feb 22 19:56:23 2016 from 116.231.27.194
Command 'mesg' is available in '/usr/bin/mesg'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
mesg: command not found
root@wothingdev:~# ti
tiancai time times
root@wothingdev:~# ti
tiancai time times
root@wothingdev:~# ti
tiancai time times
root@wothingdev:~# tiancai
/root/bin/tiancai: line 1: docker: command not found
root@wothingdev:~# logout
Connection to wothing.newb.xyz closed.
[#3#root@6fcfbc69f8d0 /go]$ssh root@wothing.newb.xyz
Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-32-generic x86_64)

• Documentation: https://help.ubuntu.com/

Welcome to aliyun Elastic Compute Service!

Last login: Mon Feb 22 20:12:00 2016 from 116.231.27.194
Command 'mesg' is available in '/usr/bin/mesg'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
mesg: command not found
root@wothingdev:~# vim
17mei/ .bashrc brew/ .config/ consulstatic/ nginx/ .profile .ssh/ .vim/
.bash_history bin/ .cache/ consulData/ git/ pac/ pull.sh sss/ .viminfo
root@wothingdev:~# vim
17mei/ .bashrc brew/ .config/ consulstatic/ nginx/ .profile .ssh/ .vim/
.bash_history bin/ .cache/ consulData/ git/ pac/ pull.sh sss/ .viminfo
root@wothingdev:~# vim .bashrc
Command 'vim' is available in '/usr/bin/vim'
The command could not be located because '/usr/bin' is not included in the PATH environment variable.
vim: command not found
root@wothingdev:~# cd /usr/
bin/ games/ include/ lib/ local/ sbin/ share/ src/
root@wothingdev:~# cd /usr/bin/
root@wothingdev:/usr/bin# ls
Command 'ls' is available in '/bin/ls'
The command could not be located because '/bin' is not included in the PATH environment variable.
ls: command not found

▽
root@wothingdev:/usr/bin# cd
root@wothingdev:~# ls
Command 'ls' is available in '/bin/ls'
The command could not be located because '/bin' is not included in the PATH environment variable.
ls: command not found
root@wothingdev:~# cat
Command 'cat' is available in '/bin/cat'
The command could not be located because '/bin' is not included in the PATH environment variable.
cat: command not found
root@wothingdev:~# cat
Command 'cat' is available in '/bin/cat'
The command could not be located because '/bin' is not included in the PATH environment variable.
cat: command not found
root@wothingdev:~# cat bin/
de tiancai
root@wothingdev:~# cat .bash
.bash_history .bashrc
root@wothingdev:~# cat .bash
.bash_history .bashrc
root@wothingdev:~# cat .bashrc

Command 'cat' is available in '/bin/cat'
The command could not be located because '/bin' is not included in the PATH environment variable.
cat: command not found
root@wothingdev:~# cd /bin/
root@wothingdev:/bin# ls
Command 'ls' is available in '/bin/ls'
The command could not be located because '/bin' is not included in the PATH environment variable.
ls: command not found
root@wothingdev:/bin# ^C
root@wothingdev:/bin# ^C
root@wothingdev:/bin# ^C
root@wothingdev:/bin# logout
Connection to wothing.newb.xyz closed.
[#4#root@6fcfbc69f8d0 /go]$[#4#root@6fcfbc69f8d0 /go]$
[#4#root@6fcfbc69f8d0 /go]$ls bin pkg src [#5#root@6fcfbc69f8d0 /go]$exit
[#10#root@dmonit ~/bin]$ls dcreate de dip dkill pass [#11#root@dmonit ~/bin]$cd
[#12#root@dmonit ~]$ls bin [#13#root@dmonit ~]$vim .bashrc
[#14#root@dmonit ~]$ls bin [#15#root@dmonit ~]$
[#15#root@dmonit ~]$[#15#root@dmonit ~]$de golang
[#1#root@golang /go]$ls bin pkg src [#2#root@golang /go]$cd
[#3#root@golang ~]$ls 17mei 17mei-archive 17mei-design activity dotfiles FixLinux protobuf test [#4#root@golang ~]$cd 17mei
[#5#root@golang ~/17mei]$ls errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user [#6#root@golang ~/17mei]$cd gateway/
[#7#root@golang ~/17mei/gateway]$ls controller main.go middleware misc pkcs8_private.pem public.pem README.md router test [#8#root@golang ~/17mei/gateway]$cd misc/
[#9#root@golang ~/17mei/gateway/misc]$ls key.go request.go respond.go result.go [#10#root@golang ~/17mei/gateway/misc]$vim request.go

[#1#root@golang ~/17mei/gateway/misc]$[#1#root@golang ~/17mei/gateway/misc]$
[#1#root@golang ~/17mei/gateway/misc]$[#1#root@golang ~/17mei/gateway/misc]$

[#1#root@golang ~/17mei/gateway/misc]$ls

key.go request.go respond.go result.go

[#2#root@golang ~/17mei/gateway/misc]$l key.go request.go respond.go result.go [#3#root@golang ~/17mei/gateway/misc]$cd
[#4#root@golang ~]$cd 17mei [#5#root@golang ~/17mei]$ls
errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user
[#6#root@golang ~/17mei]$cd user/ [#7#root@golang ~/17mei/user]$ls
const.go db.go main.go meigen user.go user_test.go
[#8#root@golang ~/17mei/user]$cd .. [#9#root@golang ~/17mei]$ls
errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user
[#10#root@golang ~/17mei]$cd gateway/ [#11#root@golang ~/17mei/gateway]$ls
controller main.go middleware misc pkcs8_private.pem public.pem README.md router test
[#12#root@golang ~/17mei/gateway]$cd controller/ [#13#root@golang ~/17mei/gateway/controller]$ls
activity.go diary.go diary_test.go handler_test.go mediastore.go service.go user.go
[#14#root@golang ~/17mei/gateway/controller]$cd ..

[#15#root@golang ~/17mei/gateway]$cd [#16#root@golang ~]$cd 17mei-design/
[#17#root@golang ~/17mei-design]$cd v1/

[#18#root@golang ~/17mei-design/v1]$ls activity.md diary.md token.md [#19#root@golang ~/17mei-design/v1]$vim activity.md
[#20#root@golang ~/17mei-design/v1]$cd [#21#root@golang ~]$cd 17mei
Press ENTER or type command to continue
[#22#root@golang ~/17mei]$ls errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user [#23#root@golang ~/17mei]$cd sql/
[#24#root@golang ~/17mei/sql]$ls activity.sql user.sql [#25#root@golang ~/17mei/sql]$vim activity.sql
[#26#root@golang ~/17mei/sql]$ls activity.sql user.sql [#27#root@golang ~/17mei/sql]$cd
[#28#root@golang ~]$cd 17mei [#29#root@golang ~/17mei]$ls
errs gateway gitpull Makefile mediastore pb PULL_REQUEST_TEMPLATE.md README.md sql user
[#30#root@golang ~/17mei]$cd user/ [#31#root@golang ~/17mei/user]$ls
const.go db.go main.go meigen user.go user_test.go
[#32#root@golang ~/17mei/user]$vim main.go [#33#root@golang ~/17mei/user]$vim user.go
[#34#root@golang ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#35#root@golang ~/17mei/user]$sl
bash: sl: command not found
[#36#root@golang ~/17mei/user]$ls const.go db.go main.go meigen user.go user_test.go [#37#root@golang ~/17mei/user]$cd
[#38#root@golang ~]$ls 17mei 17mei-archive 17mei-design activity dotfiles FixLinux protobuf test [#39#root@golang ~]$cd 17mei
17mei/ 17mei-archive/ 17mei-design/
[#39#root@golang ~]$cd 17mei/ activity/ .git/ Makefile PULL_REQUEST_TEMPLATE.md user/ errs/ .gitignore mediastore/ README.md gateway/ gitpull pb/ sql/ [#39#root@golang ~]$cd 17mei/activity/
[#40#root@golang ~/17mei/activity]$ls activity.go activity_test.go const.go db.go main.go [#41#root@golang ~/17mei/activity]$vim db.go
[#42#root@golang ~/17mei/activity]$ls activity.go activity_test.go const.go db.go main.go [#43#root@golang ~/17mei/activity]$vim main.go
[#44#root@golang ~/17mei/activity]$cd [#45#root@golang ~]$ls
17mei 17mei-archive 17mei-design activity dotfiles FixLinux protobuf test
[#46#root@golang ~]$exit

Press ENTER or type command to continue
[#11#root@golang ~/17mei/gateway/misc]$exit [#16#root@dmonit ~]$ls
bin
[#17#root@dmonit ~]$[#17#root@dmonit ~]$docker
Usage: docker [OPTIONS] COMMAND [arg...]
docker daemon [ --help | ... ]
docker [ --help | -v | --version ]

A self-sufficient runtime for containers.

Options:

--config=~/.docker Location of client config files
-D, --debug Enable debug mode
-H, --host=[] Daemon socket(s) to connect to
-h, --help Print usage
-l, --log-level=info Set the logging level
--tls Use TLS; implied by --tlsverify
--tlscacert=~/.docker/ca.pem Trust certs signed only by this CA
--tlscert=~/.docker/cert.pem Path to TLS certificate file
--tlskey=~/.docker/key.pem Path to TLS key file
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit

Commands:
attach Attach to a running container
build Build an image from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem

▽
create Create a new container
diff Inspect changes on a container's filesystem
events Get real time events from the server
exec Run a command in a running container
export Export a container's filesystem as a tar archive
history Show the history of an image
images List images
import Import the contents from a tarball to create a filesystem image
info Display system-wide information
inspect Return low-level information on a container or image
kill Kill a running container
load Load an image from a tar archive or STDIN
login Register or log in to a Docker registry
logout Log out from a Docker registry
logs Fetch the logs of a container
network Manage Docker networks
pause Pause all processes within a container

▽
port List port mappings or a specific mapping for the CONTAINER
ps List containers
pull Pull an image or a repository from a registry

▽
push Push an image or a repository to a registry
rename Rename a container
restart Restart a container
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save an image(s) to a tar archive
search Search the Docker Hub for images
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop a running container
tag Tag an image into a repository
top Display the running processes of a container
unpause Unpause all processes within a container
update Update resources of one or more containers
version Show the Docker version information
volume Manage Docker volumes
wait Block until a container stops, then print its exit code

Run 'docker COMMAND --help' for more information on a command.
[#18#root@dmonit ~]$[#18#root@dmonit ~]$
[#18#root@dmonit ~]$[#18#root@dmonit ~]$vim .bashrc
[#19#root@dmonit ~]$bash [#1#root@dmonit ~]$p
pager pdb3.4 pinky pod2man prove pwck pydoc3.4
pam-auth-update pdftexi2dvi pivot_root pod2texi ps pwconv pygettext
pam_getenv perl pkg-config pod2text psed pwd pygettext2.7
pam_tally perl5.18.2 pkill pod2usage psfaddtable pwdx pygettext3
pam_tally2 perlbug pl2pm podchecker psfgettable pwunconv pygettext3.4
pam_timestamp_check perldoc pldd podselect psfstriptable py3clean python
partx perlivp plipconfig policy-rc.d psfxtable py3compile python2
passwd perlthanks plymouth popd psqlLogin py3versions python2.7
paste pg plymouthd poweroff pstruct pybuild python3
patch pgrep plymouth-upstart-bridge pr ptar pyclean python3.4
pathchk piconv pmap prename ptardiff pycompile python3.4m
pdb pidof pod2html print ptargrep pydoc python3m
pdb2.7 ping pod2latex printenv ptx pydoc2.7 pyvenv-3.4
pdb3 ping6 pod2latex.bundled printf pushd pydoc3 pyversions
[#1#root@dmonit ~]$vim .bashrc [#2#root@dmonit ~]$psqlLogin
bash: psql: command not found
[#3#root@dmonit ~]$vim .bashrc [#4#root@dmonit ~]$ls
bin
[#5#root@dmonit ~]$cd bin/ [#6#root@dmonit ~/bin]$ls
dcreate de dip dkill pass
[#7#root@dmonit ~/bin]$cat pass
psql_pass:wothing17mei

ssh root@wothing.newb.xyz

docker run -dit\
--name=dmonit\
-h dmonit\
-p 445:22\
-v /Users/kooksee/share:/share\
-v /usr/local/bin/docker:/usr/local/bin/docker\
-v /var/run/docker.sock:/var/run/docker.sock\
-e 'PUBKEY=ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDZouXRF/aEB0VIyUGjDJSphklJMvriEcooqMLpQw55bbVHlWwA5gq/UGl4BI6ZAkEyk18S88RYWunsM+FbcHaaxhfwNTSQ9rXHK6Nr/J26PBLKMcYWyNtAWrgqk8vKhvXvRw6XYhUlgVC0SE1vAMpovqIhHArFu5JhDlk8C/WeE50lIc9ek9+dl8yjX5Nbujc/5V7ELzuCALLjvjcjozL0goAvn6hLO9ZXqeIC6D4MFWTxcKW4hcbdgzUAzlSNIhuXABedxg/uL5qseoi7Qm9WM0zPqDQF5xXJM34DPeHrib6NXen8K9rMKGh26PuHz5o/xGPOy/QWvfO0HAI8HdJx kooksee@kooksee.local' dmonit

docker run -it --name kkk -d -p 445:22 -v /usr/local/bin/docker:/usr/local/bin/docker -v /var/run/docker.sock:/var/run/docker.sock -e 'PUBKEY=ssh-rsa XXXX' index.tenxcloud.com/philo/dmonit:1.0

docker run -dit\
--name=golang\
-h golang\
-v /Users/kooksee/share:/share\
golang
[#8#root@dmonit ~/bin]$de golang [#1#root@golang /go]$cd
[#2#root@golang ~]$cd bi bash: cd: bi: No such file or directory [#3#root@golang ~]$ls
17mei 17mei-archive 17mei-design activity dotfiles FixLinux protobuf test
[#4#root@golang ~]$exit [#9#root@dmonit ~/bin]$ls
dcreate de dip dkill pass
[#10#root@dmonit ~/bin]$cat pas cat: pas: No such file or directory [#11#root@dmonit ~/bin]$cat pass
psql_pass:wothing17mei

ssh root@wothing.newb.xyz

docker run -dit\
--name=dmonit\
-h dmonit\
-p 445:22\
-v /Users/kooksee/share:/share\
-v /usr/local/bin/docker:/usr/local/bin/docker\
-v /var/run/docker.sock:/var/run/docker.sock\
-e 'PUBKEY=ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDZouXRF/aEB0VIyUGjDJSphklJMvriEcooqMLpQw55bbVHlWwA5gq/UGl4BI6ZAkEyk18S88RYWunsM+FbcHaaxhfwNTSQ9rXHK6Nr/J26PBLKMcYWyNtAWrgqk8vKhvXvRw6XYhUlgVC0SE1vAMpovqIhHArFu5JhDlk8C/WeE50lIc9ek9+dl8yjX5Nbujc/5V7ELzuCALLjvjcjozL0goAvn6hLO9ZXqeIC6D4MFWTxcKW4hcbdgzUAzlSNIhuXABedxg/uL5qseoi7Qm9WM0zPqDQF5xXJM34DPeHrib6NXen8K9rMKGh26PuHz5o/xGPOy/QWvfO0HAI8HdJx kooksee@kooksee.local' dmonit

docker run -it --name kkk -d -p 445:22 -v /usr/local/bin/docker:/usr/local/bin/docker -v /var/run/docker.sock:/var/run/docker.sock -e 'PUBKEY=ssh-rsa XXXX' index.tenxcloud.com/philo/dmonit:1.0

docker run -dit\
--name=golang\
-h golang\
-v /Users/kooksee/share:/share\
golang
[#12#root@dmonit ~/bin]$ssh root@wothing.newb.xyz
root@wothing.newb.xyz's password:

[#13#root@dmonit ~/bin]$de golang [#1#root@golang /go]$ssh root@wothing.newb.xyz
root@wothing.newb.xyz's password:

[#2#root@golang /go]$exit [#14#root@dmonit ~/bin]$ls
dcreate de dip dkill pass
[#15#root@dmonit ~/bin]$cd [#16#root@dmonit ~]$ls
bin
[#17#root@dmonit ~]$dimg bash: dimg: command not found [#18#root@dmonit ~]$docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
golang latest f47f7ed5a075 20 hours ago 1.281 GB
postgres latest 1986535a6597 7 days ago 264.1 MB
dmonit latest 5c03c096139b 7 weeks ago 452.7 MB
consul latest 55a1c7ddf173 5 months ago 67.89 MB
psql latest d2d82043267c 9 months ago 214 MB
[#19#root@dmonit ~]$dps bash: dps: command not found [#20#root@dmonit ~]$docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
42a32af80757 golang "bash" 20 hours ago Up 20 hours golang
7548be2d1758 dmonit "/bin/sh -c 'service " 24 hours ago Up 24 hours 0.0.0.0:445->22/tcp dmonit
6828db2053f9 consul "/bin/start -server -" 6 days ago Up 6 days 53/tcp, 0.0.0.0:8400->8400/tcp, 8300-8302/tcp, 0.0.0.0:53->53/udp, 8301-8302/udp, 0.0.0.0:8500->8500/tcp node1
99d9f65816d4 psql "/docker-entrypoint.s" 6 days ago Up 6 days 0.0.0.0:5432->5432/tcp elegant_kalam
[#21#root@dmonit ~]$de consul Error response from daemon: No such container: consul [#22#root@dmonit ~]$de node1
bash-4.3# ls
bin config data dev etc home lib lib64 linuxrc media mnt proc root run sbin sys tmp ui usr var
bash-4.3# bash
bash-4.3# ls
bin config data dev etc home lib lib64 linuxrc media mnt proc root run sbin sys tmp ui usr var
bash-4.3# cd
bash-4.3# ls
bash-4.3# cd ~
bash-4.3# ls
bash-4.3#
bash-4.3# con
conspy consul continue
bash-4.3# con
conspy consul continue
bash-4.3# consul --help
usage: consul [--version] [--help] []

Available commands are:
agent Runs a Consul agent
event Fire a new event
exec Executes a command on Consul nodes
force-leave Forces a member of the cluster to enter the "left" state
info Provides debugging information for operators
join Tell Consul agent to join cluster
keygen Generates a new encryption key
keyring Manages gossip layer encryption keys
leave Gracefully leaves the Consul cluster and shuts down
lock Execute a command holding a lock
maint Controls node or service maintenance mode
members Lists the members of a Consul cluster
monitor Stream logs from a Consul agent
reload Triggers the agent to reload configuration files
version Prints the Consul version
watch Watch for changes in Consul

bash-4.3# exit
bash-4.3# exit
[#23#root@dmonit ~]$ls bin [#24#root@dmonit ~]$docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
golang latest f47f7ed5a075 20 hours ago 1.281 GB
postgres latest 1986535a6597 7 days ago 264.1 MB
dmonit latest 5c03c096139b 7 weeks ago 452.7 MB
consul latest 55a1c7ddf173 5 months ago 67.89 MB
psql latest d2d82043267c 9 months ago 214 MB
[#25#root@dmonit ~]$docker ps -
docker: "ps" requires 0 arguments.
See 'docker ps --help'.

Usage: docker ps [OPTIONS]

▽
"Node":"docker-mongo-2",
"Address":"172.17.0.3"
}, {
"Node":"mailgun",
"Address":"http://www.mailgun.com"
}, {
"Node":"mongo-1",
"Address":"172.17.0.2"
}
]

太棒了！将 Docker 结合到服务发现流程中，效果非常好！

我们可以按照 清单 6 中所述查询 $CONSUL_IP:8500/v1/catalog/service/mongo，找到服务端口，从而获得更多详情。Consul 可以提供容器 IP，以此作为服务地址。即便 Docker 将其映射到主机上一个随机值上，只要是容器提供端口，该方法都适用。不过，在多主机拓扑中，您需要明确地将容器的端口映射到主机的相同端口上。为了避免这一限制，我们可以考虑采用 Weave。

总的来说，在提供多个数据中心的服务信息时，大致步骤如下：

至少启动 1 个 Consul 服务器，并存储其地址。
在每个节点上：
    下载 Consul 二进制库。
    写入服务并检查其在 Consul 配置目录中的定义。
    启动应用。
    使用另一代理或服务器的地址启动 Consul 代理。

创建基础架构感知应用
0

现在，您已经构建了一个简便的非侵入式工作流，用来部署和注册新服务。下一步是将这些知识导出到依赖性应用之中。

Twelve-Factor App 是一种构建软件即服务应用的方法，适用于在环境中的存储配置。

维持配置与不断变化的代码的严格分离。
避免在资料库中签入（check in）敏感信息。
确保语言和操作系统不可知。

阅读：Twelve-Factor App

现在，我们需要编写一个打包程序，用以查询 Consul 终端设备是否能够提供服务，并将其连接属性导出到环境中，然后执行给定的命令。选择 Go 语言，不仅可为您提供一个潜在的交叉平台二进制库（如>同其他工具），还可以使您访问正式客户端的 API（请参阅 清单 11）。
清单 11. 将服务打包到可复写的自注册容器中

pa
-- INSERT -- 513,3 Bot
清单 14. 模板化配置文件示例

// app.ctmpl

// store third-party service information in the environment
db:'mongodb://'+ process.env.MONGO_HOST + ':'+ process.env.MONGO_PORT + '/test',

// or you can leverage consul-template built-in service discovery
{{ range service "mongo" }}
db2:'mongodb://{{ .Address }}:{{ .Port }}/test',
{{ end}}

// Use consul-template to fetch information from consul kv store
// curl -X PUT "http://$CONSUL/v1/kv/hackathon/mailgun_user" -d "xavier"
mailgun:{
user:'{{ key "hackathon/mailgun_user" }}',
password:'{{ key "hackathon/mailgun_password" }}'
}

这种体验需要更多的考虑。可能具有一些策略性，例如通过重启应用来更新服务知识。我们可以通过发送特定信息，使其能够轻松地处理变更。 不过，这要求我们进入到应用代码库中；到现在为止，我们无需了解任何知识便可实现这一点。此外，随着不可靠云服务提供商推出了越来越多的微服务，这更有利于我们运行无状态的容错应用。

阅读：Martin Fowler 发表的有关 Phoenix 服务器的文章

无论如何，强大的工具连同清晰的服务契约，有助于您将分布式应用集成到复杂的基础架构中，而不会使您局限于某个特定提供商或应用堆栈。
结论
0

服务发现以及更广泛的服务统筹安排，是目前开发过程中最重要的挑战之一。资深开发人员以及开发人员社区，都正在迈入并推动着技术与理念时代的发展。

举例来说，IBM Bluemix™ 能够通过工作负载规划、智能数据库、监控、成本管理、数据同步、REST、API 等诸多功能应对这一挑战。唯有通过丰富的工具，才能使开发人员更加专注于这些应用中松散连接的模块。

借助于 Consul 和 Go，您便可朝着这个方向迈出一大步，并构建具有以下功能的系列服务：

自注册
自更新
堆栈不可知
普适型部署
容器友好性

本教程介绍了生产部署的基本知识，并展示了如何采用即插即用式方法进行服务发现，释放您的精力，使您能够更多地思考当前部署流程中的其他环节，同时也免去了所有的常规限制。 后续步骤可能包括：通过加密扩展打包程序、提供统一的集成，以便安全地提供服务令牌等证书。我希望本教程能够帮助您轻松应对超敏捷云部署过程中所遇到的挑战。
"pass" 668L, 32298C written 668,464-310 Bot