kratos框架学习，在Linux 下面使用kratos 创建demo 项目然后跑起来。使用 kratos new kratos-demo 一键创建项目，脚手架非常方便。但是依赖grpc没有起来

刺骨的言语ヽ痛彻心扉 2022-12-15 14:24 145阅读 0赞

### 目录 ###

*  前言
 *  1，关于kratos
 *  2，使用 kratos new kratos-demo 一键创建项目
 *  3，解决gRPC 编译问题
 *  4，只创建HTTP服务

# 前言 #

--------------------

本文的原文连接是:  
[https://blog.csdn.net/freewebsys/article/details/109139648][https_blog.csdn.net_freewebsys_article_details_109139648]

未经博主允许不得转载。  
博主地址是：[http://blog.csdn.net/freewebsys][http_blog.csdn.net_freewebsys]

# 1，关于kratos #

--------------------

Kratos是bilibili开源的一套Go微服务框架，包含大量微服务相关框架及工具。

HTTP Blademaster：核心基于gin进行模块化设计，简单易用、核心足够轻量；  
GRPC Warden：基于官方gRPC开发，集成discovery服务发现，并融合P2C负载均衡；  
Cache：优雅的接口化设计，非常方便的缓存序列化，推荐结合代理模式overlord；  
Database：集成MySQL/HBase/TiDB，添加熔断保护和统计支持，可快速发现数据层压力；  
Config：方便易用的paladin sdk，可配合远程配置中心，实现配置版本管理和更新；  
Log：类似zap的field实现高性能日志库，并结合log-agent实现远程日志管理；  
Trace：基于opentracing，集成了全链路trace支持（gRPC/HTTP/MySQL/Redis/Memcached）；  
Kratos Tool：工具链，可快速生成标准项目，或者通过Protobuf生成代码，非常便捷使用gRPC、HTTP、swagger文档；

项目地址，：  
[https://github.com/go-kratos/kratos][https_github.com_go-kratos_kratos]

工具地址：

# 2，使用 kratos new kratos-demo 一键创建项目 #

--------------------

首先需要安装 golang ，这个不用说。

这里需要设置下goproxy。  
[https://goproxy.cn/][https_goproxy.cn]

$ echo "export GO111MODULE=on" >> ~/.bashrc
    $ echo "export GOPROXY=https://goproxy.cn" >> ~/.bashrc
    $ source ~/.bashrc

然后再执行

GO111MODULE=on && go get -u github.com/go-kratos/kratos/tool/kratos
    cd $GOPATH/src
    kratos new kratos-demo

配置好代理之后嗖嗖的下载，比阿里云的源好用。没有404情况。

$ kratos new kratos-demo
    go get -u github.com/go-kratos/kratos/tool/kratos-gen-project@v0.5.0
    go: finding github.com v0.5.0
    go: finding github.com/go-kratos/kratos/tool/kratos-gen-project v0.5.0
    go: finding github.com/go-kratos v0.5.0
    go: finding github.com/go-kratos/kratos/tool v0.5.0
    go: finding golang.org/x/sys latest
    go: finding golang.org/x/crypto latest
    go: finding github.com/joho/godotenv v1.3.0
    go: finding github.com/gobuffalo/envy v1.9.0
    go: downloading github.com/gobuffalo/packr/v2 v2.8.0
    go: extracting github.com/gobuffalo/packr/v2 v2.8.0
    go: downloading github.com/gobuffalo/packd v1.0.0
    go: downloading github.com/markbates/oncer v1.0.0
    go: downloading github.com/markbates/errx v1.1.0
    go: downloading github.com/karrick/godirwalk v1.15.3
    go: downloading github.com/sirupsen/logrus v1.7.0
    go: downloading github.com/markbates/safe v1.0.1
    go: downloading github.com/gobuffalo/logger v1.0.3
    go: extracting github.com/sirupsen/logrus v1.7.0
    go: extracting github.com/markbates/errx v1.1.0
    go: extracting github.com/markbates/oncer v1.0.0
    go: extracting github.com/markbates/safe v1.0.1
    go: extracting github.com/karrick/godirwalk v1.15.3
    go: extracting github.com/gobuffalo/logger v1.0.3
    go: downloading golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897
    go: extracting github.com/gobuffalo/packd v1.0.0
    go: extracting golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897
    go: finding github.com/markbates/oncer v1.0.0
    go: finding github.com/karrick/godirwalk v1.16.1
    go: finding github.com/markbates/errx v1.1.0
    go: finding github.com/markbates/safe v1.0.1
    go: downloading github.com/karrick/godirwalk v1.16.1
    go: extracting github.com/karrick/godirwalk v1.16.1
    genproject: 安装成功!
    go: finding github.com/go-kratos/kratos master
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/master.info
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/master.info: 200 OK (6.058s)
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/v0.5.1-0.20201016144826-bc827de8b153.mod
    # get https://goproxy.cn/golang.org/x/net/@v/v0.0.0-20190628185345-da137c7871d7.mod
    # get https://goproxy.cn/golang.org/x/net/@v/v0.0.0-20190628185345-da137c7871d7.mod: 200 OK (0.038s)
    # get https://goproxy.cn/sumdb/sum.golang.org/supported
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/v0.5.1-0.20201016144826-bc827de8b153.mod: 200 OK (0.040s)
    # get https://goproxy.cn/sumdb/sum.golang.org/supported: 200 OK (0.023s)
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/golang.org/x/net@v0.0.0-20190628185345-da137c7871d7
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/go-kratos/kratos@v0.5.1-0.20201016144826-bc827de8b153
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/go-kratos/kratos@v0.5.1-0.20201016144826-bc827de8b153: 200 OK (0.034s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/749
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/golang.org/x/net@v0.0.0-20190628185345-da137c7871d7: 200 OK (0.054s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/749: 200 OK (0.024s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/156
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/741
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/741: 200 OK (0.026s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/156: 200 OK (0.047s)
    go: downloading github.com/go-kratos/kratos v0.5.1-0.20201016144826-bc827de8b153
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/v0.5.1-0.20201016144826-bc827de8b153.zip
    # get https://goproxy.cn/github.com/@v/list
    # get https://goproxy.cn/github.com/google/wire/@v/list
    # get https://goproxy.cn/github.com/google/@v/list
    go: downloading google.golang.org/grpc v1.28.1
    go: downloading github.com/golang/protobuf v1.3.5
    # get https://goproxy.cn/google.golang.org/grpc/@v/v1.28.1.zip
    # get https://goproxy.cn/github.com/golang/protobuf/@v/v1.3.5.zip
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/v0.5.1-0.20201016144826-bc827de8b153.zip: 200 OK (0.049s)
    # get https://goproxy.cn/github.com/golang/protobuf/@v/v1.3.5.zip: 200 OK (0.834s)
    # get https://goproxy.cn/google.golang.org/grpc/@v/v1.28.1.zip: 200 OK (0.834s)
    # get https://goproxy.cn/github.com/google/wire/@v/list: 200 OK (0.854s)
    # get https://goproxy.cn/github.com/@v/list: 404 Not Found (0.857s)
    # get https://goproxy.cn/github.com/google/@v/list: 404 Not Found (0.854s)
    go: finding github.com/google/wire v0.4.0
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.info
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.info: 200 OK (0.387s)
    go: downloading github.com/google/wire v0.4.0
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.zip
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.zip: 200 OK (0.367s)
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/google/wire@v0.4.0
    go: extracting github.com/golang/protobuf v1.3.5
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/google/wire@v0.4.0: 200 OK (0.094s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/748
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x006/748: 200 OK (0.028s)
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x002/080
    go: extracting google.golang.org/grpc v1.28.1
    go: extracting github.com/go-kratos/kratos v0.5.1-0.20201016144826-bc827de8b153
    # get https://goproxy.cn/sumdb/sum.golang.org/tile/8/0/x002/080: 200 OK (0.093s)
    go: extracting github.com/google/wire v0.4.0
    go: downloading golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
    # get https://goproxy.cn/golang.org/x/net/@v/v0.0.0-20200324143707-d3edc9973b7e.zip
    go: downloading github.com/shirou/gopsutil v2.19.11+incompatible
    # get https://goproxy.cn/github.com/shirou/gopsutil/@v/v2.19.11+incompatible.zip
    go: downloading google.golang.org/genproto v0.0.0-20200402124713-8ff61da6d932
    # get https://goproxy.cn/google.golang.org/genproto/@v/v0.0.0-20200402124713-8ff61da6d932.zip
    # get https://goproxy.cn/golang.org/x/net/@v/v0.0.0-20200324143707-d3edc9973b7e.zip: 200 OK (0.041s)
    go: downloading github.com/prometheus/client_golang v1.5.1
    # get https://goproxy.cn/github.com/prometheus/client_golang/@v/v1.5.1.zip
    go: downloading gopkg.in/go-playground/validator.v9 v9.29.1
    # get https://goproxy.cn/gopkg.in/go-playground/validator.v9/@v/v9.29.1.zip
    go: downloading github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2
    # get https://goproxy.cn/github.com/dgryski/go-farm/@v/v0.0.0-20190423205320-6a90982ecee2.zip
    go: downloading github.com/BurntSushi/toml v0.3.1
    # get https://goproxy.cn/github.com/%21burnt%21sushi/toml/@v/v0.3.1.zip
    # get https://goproxy.cn/github.com/shirou/gopsutil/@v/v2.19.11+incompatible.zip: 200 OK (0.184s)
    # get https://goproxy.cn/google.golang.org/genproto/@v/v0.0.0-20200402124713-8ff61da6d932.zip: 200 OK (0.182s)
    # get https://goproxy.cn/gopkg.in/go-playground/validator.v9/@v/v9.29.1.zip: 200 OK (0.154s)
    # get https://goproxy.cn/github.com/prometheus/client_golang/@v/v1.5.1.zip: 200 OK (0.176s)
    # get https://goproxy.cn/github.com/dgryski/go-farm/@v/v0.0.0-20190423205320-6a90982ecee2.zip: 200 OK (0.140s)
    # get https://goproxy.cn/github.com/%21burnt%21sushi/toml/@v/v0.3.1.zip: 200 OK (0.193s)
    go: extracting github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2
    go: extracting github.com/BurntSushi/toml v0.3.1
    go: downloading github.com/go-sql-driver/mysql v1.4.1
    # get https://goproxy.cn/github.com/go-sql-driver/mysql/@v/v1.4.1.zip
    go: extracting gopkg.in/go-playground/validator.v9 v9.29.1
    go: extracting github.com/prometheus/client_golang v1.5.1
    # get https://goproxy.cn/github.com/go-sql-driver/mysql/@v/v1.4.1.zip: 200 OK (0.116s)
    go: downloading github.com/go-playground/universal-translator v0.16.0
    # get https://goproxy.cn/github.com/go-playground/universal-translator/@v/v0.16.0.zip
    go: downloading github.com/prometheus/common v0.9.1
    # get https://goproxy.cn/github.com/prometheus/common/@v/v0.9.1.zip
    go: downloading github.com/prometheus/procfs v0.0.11
    # get https://goproxy.cn/github.com/prometheus/procfs/@v/v0.0.11.zip
    go: extracting github.com/shirou/gopsutil v2.19.11+incompatible
    go: downloading github.com/beorn7/perks v1.0.1
    # get https://goproxy.cn/github.com/beorn7/perks/@v/v1.0.1.zip
    go: downloading github.com/leodido/go-urn v1.1.0
    # get https://goproxy.cn/github.com/leodido/go-urn/@v/v1.1.0.zip
    go: extracting github.com/go-sql-driver/mysql v1.4.1
    # get https://goproxy.cn/github.com/go-playground/universal-translator/@v/v0.16.0.zip: 200 OK (0.240s)
    # get https://goproxy.cn/github.com/prometheus/common/@v/v0.9.1.zip: 200 OK (0.234s)
    # get https://goproxy.cn/github.com/prometheus/procfs/@v/v0.0.11.zip: 200 OK (0.233s)
    go: extracting golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
    # get https://goproxy.cn/github.com/beorn7/perks/@v/v1.0.1.zip: 200 OK (0.219s)
    # get https://goproxy.cn/github.com/leodido/go-urn/@v/v1.1.0.zip: 200 OK (0.194s)
    go: downloading github.com/prometheus/client_model v0.2.0
    # get https://goproxy.cn/github.com/prometheus/client_model/@v/v0.2.0.zip
    # get https://goproxy.cn/github.com/prometheus/client_model/@v/v0.2.0.zip: 200 OK (0.206s)
    go: extracting github.com/go-playground/universal-translator v0.16.0
    go: downloading github.com/go-playground/locales v0.12.1
    # get https://goproxy.cn/github.com/go-playground/locales/@v/v0.12.1.zip
    go: extracting github.com/beorn7/perks v1.0.1
    go: extracting github.com/leodido/go-urn v1.1.0
    go: extracting github.com/prometheus/common v0.9.1
    go: extracting github.com/prometheus/procfs v0.0.11
    go: downloading github.com/matttproud/golang_protobuf_extensions v1.0.1
    # get https://goproxy.cn/github.com/matttproud/golang_protobuf_extensions/@v/v1.0.1.zip
    go: extracting github.com/prometheus/client_model v0.2.0
    # get https://goproxy.cn/github.com/go-playground/locales/@v/v0.12.1.zip: 200 OK (0.234s)
    # get https://goproxy.cn/github.com/matttproud/golang_protobuf_extensions/@v/v1.0.1.zip: 200 OK (0.190s)
    go: extracting github.com/matttproud/golang_protobuf_extensions v1.0.1
    go: extracting github.com/go-playground/locales v0.12.1
    go: extracting google.golang.org/genproto v0.0.0-20200402124713-8ff61da6d932
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.mod
    # get https://goproxy.cn/github.com/google/wire/@v/v0.4.0.mod: 200 OK (0.042s)
    # get https://goproxy.cn/golang.org/x/tools/@v/v0.0.0-20190422233926-fe54fb35175b.mod
    # get https://goproxy.cn/github.com/google/subcommands/@v/v1.0.1.mod
    # get https://goproxy.cn/golang.org/x/tools/@v/v0.0.0-20190422233926-fe54fb35175b.mod: 200 OK (0.032s)
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/golang.org/x/tools@v0.0.0-20190422233926-fe54fb35175b
    # get https://goproxy.cn/github.com/google/subcommands/@v/v1.0.1.mod: 200 OK (0.049s)
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/google/subcommands@v1.0.1
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/golang.org/x/tools@v0.0.0-20190422233926-fe54fb35175b: 200 OK (0.085s)
    # get https://goproxy.cn/sumdb/sum.golang.org/lookup/github.com/google/subcommands@v1.0.1: 200 OK (0.104s)
    kratos tool protoc --grpc --bm api.proto
    go get -u github.com/go-kratos/kratos/tool/kratos-protoc@v0.5.0
    go: finding github.com v0.5.0
    go: finding github.com/go-kratos/kratos/tool/kratos-protoc v0.5.0
    go: finding github.com/go-kratos/kratos/tool v0.5.0
    go: finding github.com/go-kratos v0.5.0
    protoc: 安装成功!
    snap install --classic protobuf
    error: access denied (try with sudo)
    exit status 1
    exit status 1
    kratos tool genbts
    go get -u github.com/go-kratos/kratos/tool/kratos-gen-bts@v0.5.0
    go: finding github.com v0.5.0
    go: finding github.com/go-kratos/kratos/tool/kratos-gen-bts v0.5.0
    go: finding github.com/go-kratos v0.5.0
    go: finding github.com/go-kratos/kratos/tool v0.5.0
    genbts: 安装成功!
    Close: 无声明 忽略此方法
    Ping: 无声明 忽略此方法
    dao.bts.go: 生成成功
    kratos tool genmc
    go get -u github.com/go-kratos/kratos/tool/kratos-gen-mc@v0.5.0
    go: finding github.com/go-kratos/kratos/tool/kratos-gen-mc v0.5.0
    go: finding github.com/go-kratos v0.5.0
    go: finding github.com v0.5.0
    go: finding github.com/go-kratos/kratos/tool v0.5.0
    genmc: 安装成功!
    mc.cache.go: 生成成功
    kratos tool wire
    go get -u github.com/google/wire/cmd/wire
    go: downloading github.com/google/subcommands v1.0.1
    go: downloading golang.org/x/tools v0.0.0-20190422233926-fe54fb35175b
    go: extracting github.com/google/subcommands v1.0.1
    go: extracting golang.org/x/tools v0.0.0-20190422233926-fe54fb35175b
    go: finding golang.org/x/tools latest
    go: finding github.com/google/subcommands v1.2.0
    go: downloading github.com/google/subcommands v1.2.0
    go: downloading golang.org/x/tools v0.0.0-20201017001424-6003fad69a88
    go: extracting github.com/google/subcommands v1.2.0
    go: extracting golang.org/x/tools v0.0.0-20201017001424-6003fad69a88
    go: downloading golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
    go: downloading golang.org/x/mod v0.3.0
    go: extracting golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
    go: extracting golang.org/x/mod v0.3.0
    go: finding golang.org/x/xerrors latest
    go: finding golang.org/x/mod v0.3.0
    wire: 安装成功!
    wire: /media/test/NewDisk1/go/src/kratos-demo/internal/service/service.go:15:33: first argument to Bind must be a pointer to an interface type; found <nil>
    wire: kratos-demo/internal/di: generate failed
    wire: at least one generate failure
    exit status 1
    kratos tool wire
    wire: kratos-demo/internal/dao: wrote /media/test/NewDisk1/go/src/kratos-demo/internal/dao/wire_gen.go
    Project: kratos-demo
    OnlyGRPC: false
    OnlyHTTP: false
    Directory: /home/test/newDisk1/go/src/kratos-demo
    
    项目创建成功.

# 3，解决gRPC 编译问题 #

--------------------

安装工具：

sudo apt install protobuf-compiler-grpc
    
    执行：
     kratos tool protoc --grpc --bm api.proto
    报错，估计安装的版本不行，对不上。
    
    $ protoc --version
    libprotoc 3.0.0

grpc 没有弄明白，先创建一个简单的HTTP服务：

# 4，只创建HTTP服务 #

--------------------

可以增加参数 --http 只创建一个http 服务，然后还是依赖些 grpc的生成的代码。

$ kratos new kratos-demo  --http
    go: finding github.com/go-kratos/kratos master
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/master.info
    # get https://goproxy.cn/github.com/go-kratos/kratos/@v/master.info: 200 OK (8.222s)
    # get https://goproxy.cn/github.com/@v/list
    # get https://goproxy.cn/github.com/google/wire/@v/list
    # get https://goproxy.cn/github.com/google/@v/list
    # get https://goproxy.cn/github.com/@v/list: 404 Not Found (0.033s)
    # get https://goproxy.cn/github.com/google/@v/list: 404 Not Found (0.142s)
    # get https://goproxy.cn/github.com/google/wire/@v/list: 200 OK (0.482s)
    kratos tool protoc --grpc --bm api.proto
    2020/10/17 23:34:57 protoc --proto_path=/media/test/NewDisk1/go/src --proto_path=/media/test/NewDisk1/go/pkg/mod/github.com/go-kratos/kratos@v0.5.1-0.20201016144826-bc827de8b153/third_party --proto_path=/media/test/NewDisk1/go/src/kratos-demo/api --bm_out=:. api.proto
    api.proto: File does not reside within any path specified using --proto_path (or -I).  You must specify a --proto_path which encompasses this file.  Note that the proto_path must be an exact prefix of the .proto file names -- protoc is too dumb to figure out when two paths (e.g. absolute and relative) are equivalent (it's harder than you think).
    exit status 1
    exit status 1
    kratos tool genbts
    Close: 无声明 忽略此方法
    Ping: 无声明 忽略此方法
    dao.bts.go: 生成成功
    kratos tool genmc
    mc.cache.go: 生成成功
    kratos tool wire
    wire: /media/test/NewDisk1/go/src/kratos-demo/internal/service/service.go:15:33: first argument to Bind must be a pointer to an interface type; found <nil>
    wire: kratos-demo/internal/di: generate failed
    wire: at least one generate failure
    exit status 1
    kratos tool wire
    wire: kratos-demo/internal/dao: wrote /media/test/NewDisk1/go/src/kratos-demo/internal/dao/wire_gen.go
    Project: kratos-demo
    OnlyGRPC: false
    OnlyHTTP: true
    Directory: /home/test/newDisk1/go/src/kratos-demo
    
    项目创建成功.

本文的原文连接是:  
[https://blog.csdn.net/freewebsys/article/details/109139648][https_blog.csdn.net_freewebsys_article_details_109139648]

博主地址是：[https://blog.csdn.net/freewebsys][https_blog.csdn.net_freewebsys]  
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[https_blog.csdn.net_freewebsys_article_details_109139648]: https://blog.csdn.net/freewebsys/article/details/109139648
[http_blog.csdn.net_freewebsys]: http://blog.csdn.net/freewebsys
[https_github.com_go-kratos_kratos]: https://github.com/go-kratos/kratos
[https_goproxy.cn]: https://goproxy.cn/
[https_blog.csdn.net_freewebsys]: https://blog.csdn.net/freewebsys
[format_png]: /images/20221123/7bd3a24540ec4175ab5f8d2ed5c4ffe3.png