https://github.com/opvexe/sass-web-server

gin写的web项目，包含go-micro ，etcd服务发现,普罗米修斯
https://github.com/opvexe/sass-web-server

docker docker-compose gin gorm mysql

Last synced: 6 days ago
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gin写的web项目，包含go-micro ，etcd服务发现,普罗米修斯

• Host: GitHub
• URL: https://github.com/opvexe/sass-web-server
• Owner: opvexe
• Created: 2019-12-29T03:24:44.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-01-21T09:54:34.000Z (almost 5 years ago)
• Last Synced: 2024-11-09T18:14:10.874Z (2 months ago)
• Topics: docker, docker-compose, gin, gorm, mysql
• Language: Go
• Homepage:
• Size: 3.5 MB
• Stars: 2
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        

## 1.1docker-compose 安装过程中2.0~3.0存在的问题

![截图](./images/2019-12-20-1.png)

#### 1.1 可能问题 

```shell

Installing collected packages: texttable, subprocess32, urllib3, certifi, chardet, idna, requests, websocket-client, pycparser, cffi, bcrypt, pynacl, cryptography, paramiko, docker, backports.shutil-get-terminal-size, docker-compose

  Found existing installation: texttable 0.8.1

ERROR: Cannot uninstall 'texttable'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

SENSETIME\taoshumin_vend

```

解决方案:

```shell

$ sudo pip install docker-compose --ignore -installed request

```

#### 1.2 可能存在问题

![截图](./images/2019-12-20-2.png)

```shell

, line 97, in 

    from pip._vendor.urllib3.contrib import pyopenssl

  File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/urllib3/contrib/pyopenssl.py", line 46, in 

    import OpenSSL.SSL

  File "/usr/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in 

    from OpenSSL import rand, crypto, SSL

  File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 118, in 

    SSL_ST_INIT = _lib.SSL_ST_INIT

AttributeError: 'module' object has no attribute 'SSL_ST_INIT'

```

解决方案:

```shell

$ rm -rf /usr/lib/python2.7/dist-packages/OpenSSL

$ rm -rf /usr/lib/python2.7/dist-packages/pyOpenSSL-0.15.1.egg-info

$ sudo pip install pyopenssl

```

## 1.2 docker 制作镜像

```shell

# 制作镜像

$ docker build -t 镜像名:tag . 

# 运行镜像

$ docker run -itd --name 容器名 -p 宿主机port:容器port 镜像名

```

#### 1.2.1 直接删除所有镜像或容器

```shell

# 直接删除所有镜像

docker rmi `docker images -q`

# 直接删除所有容器

docker rm `docker ps -aq`

# 按条件筛选之后删除镜像

docker rmi `docker images | grep xxxxx | awk '{print $3}'`

# 按条件筛选之后删除容器

docker rm `docker ps -a | grep xxxxx | awk '{print $1}'`

```

## 1.4 Go [老外的写法]

#### 1.4.1 定时器

```go

func startInternalMetrics(ctx context.Context, wg *sync.WaitGroup, storage *Storage, interval uint) {

	var memstats runtime.MemStats

	var metricsTicker *time.Ticker

	if interval > 0 {

		metricsTicker = time.NewTicker(time.Duration(interval) * time.Second)

	} else {

		metricsTicker = time.NewTicker(15 * time.Second)

	}

	wg.Add(1)

	defer wg.Done()

	for {

		select {

		case <-metricsTicker.C:

			runtime.ReadMemStats(&memstats)

			storage.MetricDistributor <- makeInternalMetric("mem.alloc", float64(memstats.Alloc))

			storage.MetricDistributor <- makeInternalMetric("heap.alloc", float64(memstats.HeapAlloc))

			storage.MetricDistributor <- makeInternalMetric("heap.in_use", float64(memstats.HeapInuse))

			storage.MetricDistributor <- makeInternalMetric("num_goroutines", float64(runtime.NumGoroutine()))

		case <-ctx.Done():

			log.Println("Cancellation request received.  Cancelling job runner.")

			return

		}

	}

```

#### 1.4.2  [Context传递]

```go

func NewJobRunner(ctx context.Context) *JobRunner {

	jr := JobRunner{

		ctx: ctx,

	}

	jr.JobChan = make(chan Job, 10)

	return &jr

}

```