blocks|key|3528985|text|您可以将日志文件从容器挂载到EC2主机。在运行容器时，可以通过使用+flag来做到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3528986|docker+run+-v+/var/log/my_host_log_file.log:/var/log/your_container_log_file.log+your-image|code-block|syntax|javascript|3528987|或者，您可以将应用程序配置为登录到stdout，并使用syslog作为日志驱动程序(使用+switch)。然后，容器日志将被写入主机上的/var/log/messages。|style|CODE|3528988|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.docker.com/engine/tutorials/dockervolumes/|1|https://docs.docker.com/engine/admin/logging/overview/#supported-logging-drivers^0|X|5|0|0|0|1W|H|18|7|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|11|8|@$A|12|B|13|K|L]]|9|@$A|14|B|15|1|16]]|C|$]]|$1|M|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

You could mount the log file from your container to your EC2 host. You can do this by using <a href="https://docs.docker.com/engine/tutorials/dockervolumes/" rel="nofollow noreferrer">the <code>-v</code> flag</a> when running your container:

<pre><code>docker run -v /var/log/my_host_log_file.log:/var/log/your_container_log_file.log your-image
</code></pre>

Alternatively, you can configure your app to log to stdout and use syslog as your log driver (using <a href="https://docs.docker.com/engine/admin/logging/overview/#supported-logging-drivers" rel="nofollow noreferrer">the <code>--log-driver=syslog</code> switch</a>). Your container logs will then be written to <code>/var/log/messages</code> on your host.

blocks|key|1218565|text|如果您使用AWS，我建议将日志直接发送到AWS+CloudWatch。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1218566|首先，在AWS+Cloudwatch中创建一个新的日志组，例如"Production“。在您的Docker-Compose.yml中(或通过docker运行.)添加AWS日志驱动程序：|1218567|++++logging:
++++driver:+"awslogs"
++++options:
++++++awslogs-region:+"eu-central-1"
++++++awslogs-group:+"Production"
++++++awslogs-stream:+"MyApp"|code-block|syntax|javascript|1218568|接下来，创建一个能够访问AWS+Cloudwatch的IAM用户，并将凭证添加到Dockerhost。|1218569|实例IAM政策：|1218570|"Version"+"2012-10-17"+
"Statement"+|1218571|“操作”“日志:CreateLogStream”“日志:PutLogEvents”“效果”“允许”“资源”|1218572|在Ubuntu上使用systemd：|1218573|"Version"+"2012-10-17"+
"Statement"+
++"Action"+
++++"logs:CreateLogStream"+
++++"logs:PutLogEvents"+
++"Effect"+
++"Allow"+"Resource"|1218574|并添加到文件中：|1218575|[Service]+Environment"AWS_ACCESS_KEY_ID=<aws_access_key_id>"+
Environment"AWS_SECRET_ACCESS_KEY=<aws_secret_access_key>"|1218576|运行：|1218577|systemctl+daemon-reload
service+docker+restart|1218578|现在，您的日志应该出现在AWS+Cloudwatch中。|1218579|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|19|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|1B|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1E|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1F|8|@]|9|@]|A|$]]|$1|W|3|X|5|F|7|1G|8|@]|9|@]|A|$G|H]]|$1|Y|3|Z|5|6|7|1H|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|1I|8|@]|9|@]|A|$G|H]]|$1|12|3|13|5|6|7|1J|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|15|$]]

If you use AWS, i would suggest to send Logs direct to AWS CloudWatch. 

First create a new Log-Group in AWS Cloudwatch, for example "Production". In your Docker-Compose.yml (or via docker run..) add the AWS Logdriver:

<pre><code> logging:
 driver: "awslogs"
 options:
 awslogs-region: "eu-central-1"
 awslogs-group: "Production"
 awslogs-stream: "MyApp"
</code></pre>

Next creat a IAM user with Access to AWS Cloudwatch and add to the Dockerhost the credentials.

Example IAM Policy: 

<pre><code>"Version" "2012-10-17" 
"Statement" 
</code></pre>

"Action" "logs:CreateLogStream" "logs:PutLogEvents" "Effect" "Allow" "Resource"

On Ubuntu with systemd:

<pre><code>"Version" "2012-10-17" 
"Statement" 
 "Action" 
 "logs:CreateLogStream" 
 "logs:PutLogEvents" 
 "Effect" 
 "Allow" "Resource"
</code></pre>

And add to the File:

<pre><code>[Service] Environment"AWS_ACCESS_KEY_ID=&lt;aws_access_key_id&gt;" 
Environment"AWS_SECRET_ACCESS_KEY=&lt;aws_secret_access_key&gt;"
</code></pre>

Run:

<pre><code>systemctl daemon-reload
service docker restart
</code></pre>

Now your logs should appear in AWS Cloudwatch.

blocks|key|1219539|text|谢谢你的回复。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1219540|过了一会儿，我找到了这个问题的解决办法！|1219541|首先，我需要在docker-host中挂载实例中的文件。|1219542|为此，我在我的项目名为Dockerrun.aws.json+(+dockerrun+)的根文件夹中添加了一个Json文件|offset|length|1219543|该文件声明了我保存日志文件的共享文件夹(卷)+(beetwen+docker-host和实例)。这一行相当于在docker命令(https://docs.docker.com/engine/tutorials/dockervolumes/#mount-a-host-directory-as-data-volume)中添加-v标志。我这样做是因为我不能将挂载添加到正在运行的实例，而且我不能通过ssh来阻止它。|1219544|{
++"AWSEBDockerrunVersion":+"1",
++"Volumes":+[
++{
++++"HostDirectory":+"/var/log/",
++++"ContainerDirectory":+"/go/src/app/log"
++}
++]
}|code-block|syntax|javascript|1219545|然后告诉aws，当我请求记录时，我想下载日志文件。(尾(最后100行)、包或旋转)我将这些文件添加到项目目录中的.ebextension文件夹中。(+us/elasticbeanstalk/latest/dg/using-features.logging.html#health-logs-extend+)|1219546|Log_bundle.conf|1219547|Files:
"/opt/elasticbeanstalk/tasks/bundlelogs.d/log_bundle.conf":
++++Mode:+"000755"
++++Owner:+root
++++Group:+root
++++Content:+%7C
++++++/var/log/application.log|1219548|Log_rotate.config|1219549|Files:
"/opt/elasticbeanstalk/tasks/bundlelogs.d/log_rotate.conf":
++++Mode:+"000755"
++++Owner:+root
++++Group:+root
++++Content:+%7C
++++++/var/log/application.log|1219550|Log_tail.config|1219551|Files:
"/opt/elasticbeanstalk/tasks/publishlogs.d/log_tail.conf":
++++Mode:+"000755"
++++Owner:+root
++++Group:+root
++++Content:+%7C
++++++/var/log/application.log|1219552|最后，我不尝试亚马逊可以观看，但这是下一步。|1219553|问候|1219554|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.aws.amazon.com/es_es/elasticbeanstalk/latest/dg/create_deploy_docker_image.html#create_deploy_docker_image_dockerrun|1|https://docs.docker.com/engine/tutorials/dockervolumes/#mount-a-host-directory-as-data-volume|2|http://docs.aws.amazon.com/en_us/elasticbeanstalk/latest/dg/using-features.logging.html#health-logs-extend^0|0|0|0|W|9|0|0|1S|2L|1|0|0|23|24|2|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1L|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1M|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1N|8|@]|9|@$H|1O|I|1P|1|1Q]]|A|$]]|$1|J|3|K|5|6|7|1R|8|@]|9|@$H|1S|I|1T|1|1U]]|A|$]]|$1|L|3|M|5|N|7|1V|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1W|8|@]|9|@$H|1X|I|1Y|1|1Z]]|A|$]]|$1|S|3|T|5|6|7|20|8|@]|9|@]|A|$]]|$1|U|3|V|5|N|7|21|8|@]|9|@]|A|$O|P]]|$1|W|3|X|5|6|7|22|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|N|7|23|8|@]|9|@]|A|$O|P]]|$1|10|3|11|5|6|7|24|8|@]|9|@]|A|$]]|$1|12|3|13|5|N|7|25|8|@]|9|@]|A|$O|P]]|$1|14|3|15|5|6|7|26|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|27|8|@]|9|@]|A|$]]|$1|18|3|-4|5|6|7|28|8|@]|9|@]|A|$]]]|19|$1A|$5|1B|1C|1D|A|$1E|1F]]|1G|$5|1B|1C|1D|A|$1E|1H]]|1I|$5|1B|1C|1D|A|$1E|1J]]]]

Thanks for reply.

After a while looking for the solution to the problem, I found it!

Firstly, I needed to mount the file that is inside the instance in the docker-host.

To do this I add a Json file in the root folder of my project called Dockerrun.aws.json
( <a href="http://docs.aws.amazon.com/es_es/elasticbeanstalk/latest/dg/create_deploy_docker_image.html#create_deploy_docker_image_dockerrun" rel="nofollow noreferrer">http://docs.aws.amazon.com/es_es/elasticbeanstalk/latest/dg/create_deploy_docker_image.html#create_deploy_docker_image_dockerrun</a> )

That is the file that declares the shared folder (volumes) (beetwen docker-host and instance) where I save my log file . This line is equivalent to adding -v flag in the docker run command (<a href="https://docs.docker.com/engine/tutorials/dockervolumes/#mount-a-host-directory-as-data-volume" rel="nofollow noreferrer">https://docs.docker.com/engine/tutorials/dockervolumes/#mount-a-host-directory-as-data-volume</a>). I do this this way because I can not add mount to a running instance and i cant stop it by ssh.

<pre><code>{
 "AWSEBDockerrunVersion": "1",
 "Volumes": [
 {
 "HostDirectory": "/var/log/",
 "ContainerDirectory": "/go/src/app/log"
 }
 ]
}
</code></pre>

Then to tell aws that I want to download my log file when I request records. (Tail (last 100 lines), bundle or rotate) I add these files to the .ebextension folder in my project directory. ( <a href="http://docs.aws.amazon.com/en_us/elasticbeanstalk/latest/dg/using-features.logging.html#health-logs-extend" rel="nofollow noreferrer">http://docs.aws.amazon.com/en_us/elasticbeanstalk/latest/dg/using-features.logging.html#health-logs-extend</a> )

Log_bundle.conf

<pre><code>Files:
"/opt/elasticbeanstalk/tasks/bundlelogs.d/log_bundle.conf":
 Mode: "000755"
 Owner: root
 Group: root
 Content: |
 /var/log/application.log
</code></pre>

Log_rotate.config

<pre><code>Files:
"/opt/elasticbeanstalk/tasks/bundlelogs.d/log_rotate.conf":
 Mode: "000755"
 Owner: root
 Group: root
 Content: |
 /var/log/application.log
</code></pre>

Log_tail.config

<pre><code>Files:
"/opt/elasticbeanstalk/tasks/publishlogs.d/log_tail.conf":
 Mode: "000755"
 Owner: root
 Group: root
 Content: |
 /var/log/application.log
</code></pre>

Finally, I dont try Amazon Could Watch but is the next step.

Regards

blocks|key|3529144|text|如果你用麋鹿(Elasticsearch，Logstash，Kibana)，我建议你用"logrus“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3529145|去图书馆|3529146|去找github.com/sirupsen/logrus|blockquote|3529147|然后在你的项目中|3529148|package+main

import+(

++++logrus+"github.com/sirupsen/logrus"
)

var+log+=+logrus.New()

func+main()+{

++++conn,+_+:=+net.Dial("tcp",+"logstash-address")
++++hook+:=+logrustash.New(conn,+logrustash.DefaultFormatter(logrus.Fields{"type":+"my-app"}))
++++log.Hooks.Add(hook)


++++log.Info("Hello+World!")

}|code-block|syntax|javascript|3529149|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|R|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|T|8|@]|9|@]|A|$L|M]]|$1|N|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|O|$]]

If you use ELK (Elasticsearch, Logstash, Kibana), I would suggest to use "logrus"

Get the library

<blockquote>
 go get github.com/sirupsen/logrus
</blockquote>

Then in your project

<pre><code>package main

import (

 logrus "github.com/sirupsen/logrus"
)

var log = logrus.New()

func main() {

 conn, _ := net.Dial("tcp", "logstash-address")
 hook := logrustash.New(conn, logrustash.DefaultFormatter(logrus.Fields{"type": "my-app"}))
 log.Hooks.Add(hook)


 log.Info("Hello World!")

}
</code></pre>

I have a project built in Golang and deployed on a Docker instance in AWS.

Internally I create a log file where the program write several logs.

How can I access that log file?

Is there another correct way to logging?

Thanks

How to logging in Amazon Web Service ( AWS )?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我在Golang构建了一个项目，并部署在AWS中的一个Docker实例上。在内部，我创建一个日志文件，程序在其中编写多个日志。我如何访问该日志文件？还有另外一种正确的登录方式吗？谢谢

问如何登录( AWS )？
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