尊龙凯时人生就是博

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Ò»¡¢DockerÈÕÖ¾¼ò½é

DockerÈÕÖ¾Ö¸µÄÊÇÈÝÆ÷µÄÊä³ö£¬°üÀ¨ÈÝÆ÷µÄ±ê×¼Êä³öºÍ¹ýʧÊä³ö£¬ÔÚÈÝÆ÷ÄÚ²¿£¬¿ÉÒÔͨ¹ýstdoutºÍstderr½«Êä³öдÈëµ½¿ØÖÆ̨¡£Docker½«ÕâЩÊä³ö²¶»ñ£¬ÉúÑĵ½ËÞÖ÷»úÉϵÄÒ»¸öÎļþÖС£

ÔÚDockerÖУ¬Ã¿¸öÈÝÆ÷¶¼ÓÐ×Ô¼ºµÄÈÕÖ¾£¬¿ÉÒÔʹÓÃDockerÏÂÁîÉó²éÈÝÆ÷µÄÈÕÖ¾£º

docker logs [CONTAINER ID]

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ÆäÖÐCONTAINER IDÖ¸µÄÊÇÈÝÆ÷µÄID¡£

¶þ¡¢Ê¹ÓÃDocker¾ÙÐÐÈÝÆ÷ÈÕÖ¾ÆÊÎö

ʹÓÃDocker¾ÙÐÐÈÝÆ÷µÄÈÕÖ¾ÆÊÎö£¬¿ÉÒÔ×ÊÖúÎÒÃÇÏàʶÈÝÆ÷µÄÔËÐÐÇéÐΣ¬ÕÒµ½±£´æµÄÎÊÌâ²¢¾ÙÐÐÐÞ¸´¡£ÏÂÃæÊÇʹÓÃDocker¾ÙÐÐÈÝÆ÷ÈÕÖ¾ÆÊÎöµÄÏêϸ°ì·¨£º

1. Éó²éÈÝÆ÷ÈÕÖ¾

Ê×ÏÈ£¬ÎÒÃÇÐèÒªÉó²éÈÝÆ÷µÄÈÕÖ¾£¬ÅжÏÈÝÆ÷ÊÇ·ñ±£´æÒì³£¡£Ê¹ÓÃDockerÏÂÁîÉó²éÈÝÆ÷µÄÈÕÖ¾£º

docker logs [CONTAINER ID]

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ÈôÊÇÏëÉó²éÈÝÆ÷×î½üµÄ10ÌõÈÕÖ¾£¬¿ÉÒÔʹÓÃÒÔÏÂÏÂÁ

docker logs --tail 10 [CONTAINER ID]

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2. ƾ֤Ҫº¦×Ö¹ýÂËÈÕÖ¾

ÔÚÉó²éÈÝÆ÷ÈÕ־ʱ£¬ÎÒÃÇ¿ÉÒÔƾ֤Ҫº¦×ÖÀ´¹ýÂËÈÕÖ¾£¬ÒÔ±ãÔ½·¢×¼È·µØÏàʶÈÝÆ÷µÄÔËÐÐÇéÐΡ£Ê¹ÓÃÈçÏÂÏÂÁ¿ÉÒÔƾ֤Ҫº¦×Öɸѡ³öÈÕÖ¾£º

docker logs [CONTAINER ID] | grep [KEYWORD]

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ÀýÈ磬²éÕÒ°üÀ¨¡°error¡±µÄÈÕÖ¾£º

docker logs [CONTAINER ID] | grep error

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3. Êä³öÈÝÆ÷ÈÕÖ¾µ½Îļþ

Docker»á½«ÈÝÆ÷µÄÈÕÖ¾ÉúÑĵ½ËÞÖ÷»úÉϵÄÒ»¸öÎļþÖС£ÎÒÃÇ¿ÉÒÔ½«ÈÝÆ÷µÄÈÕÖ¾Êä³öµ½ÎļþÖУ¬ÒÔ±ãºóÐøÆÊÎö¡£Ê¹ÓÃÈçÏÂÏÂÁ¿ÉÒÔ½«ÈÝÆ÷µÄÈÕÖ¾Êä³öµ½Ò»¸öÎļþÖУº

docker logs [CONTAINER ID] > [LOG FILE]

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ÀýÈ磬½«ÈÝÆ÷µÄÈÕÖ¾Êä³öµ½Îļþ¡°container.log¡±£º

docker logs [CONTAINER ID] > container.log

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4. ʹÓõÚÈý·½¹¤¾ß¾ÙÐÐÈÕÖ¾ÆÊÎö

ÈôÊÇÏëÔ½·¢ÉîÈëµØ¾ÙÐÐÈÝÆ÷ÈÕÖ¾ÆÊÎö£¬¿ÉÒÔʹÓÃһЩµÚÈý·½¹¤¾ß¡£ÀýÈ磬ʹÓÃELK£¨Elasticsearch + Logstash + Kibana£©¾ÙÐÐÈÕÖ¾ÆÊÎö¡£ÏÂÃæ¼òÆÓÏÈÈÝÒ»ÏÂÔõÑùʹÓÃELK¾ÙÐÐÈÝÆ÷ÈÕÖ¾ÆÊÎö¡£

4.1 ×°ÖÃELK

ÎÒÃÇ¿ÉÒÔʹÓÃDockerÀ´×°ÖÃELK£¬Ïêϸ°ì·¨ÈçÏ£º

docker pull sebp/elk
docker run -p 5601:5601 -p 9200:9200 -p 5044:5044 -it --name elk sebp/elk

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ÉÏÊöÏÂÁîÖУ¬À­È¡ÁËsebp/elk¾µÏñ£¬²¢Æô¶¯ÁËÒ»¸öÃûΪ¡°elk¡±µÄÈÝÆ÷¡£ÎÒÃÇ¿ÉÒÔͨ¹ýµØµãhttp://localhost:5601/À´»á¼ûKibanaÃæ°å¡£

4.2 ÉèÖÃLogstash

ÔÚLogstashÖУ¬ÐèÒªÉèÖÃÊäÈë¡¢¹ýÂËÆ÷ºÍÊä³ö¡£ÏÂÃæÊÇÒ»¸ö¼òÆÓµÄLogstashÉèÖÃÎļþ£¬ÓÃÓÚ½«ÈÝÆ÷µÄÈÕÖ¾ÊäÈëµ½ElasticsearchÖУº

input {
  file {
    type => "docker"
    path => "/var/lib/docker/containers/*/*.log"
    exclude => "*.gz"
  }
}

filter {
  if [type] == "docker" {
    grok {
      match => { "message" => "[%{TIMESTAMP_ISO8601:timestamp}] %{LOGLEVEL:loglevel} %{GREEDYDATA:message}" }
      overwrite => [ "message" ]
    }
    date {
      match => [ "timestamp", "ISO8601" ]
      timezone => "UTC"
    }
  }
}

output {
  stdout { codec => rubydebug }
  elasticsearch {
    hosts => ["localhost:9200"]
    index => "docker-%{+YYYY.MM.dd}"
    document_type => "docker"
  }
}

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ÉÏÊöÉèÖÃÎļþÖУ¬½ç˵ÁËÒ»¸öÃûΪ¡°docker¡±µÄÊäÈ룬ÊäÈë·¾¶Îª/var/lib/docker/containers/ÏÂËùÓеÄ.logÎļþ¡£ÔÚ¹ýÂËÆ÷ÖУ¬Ê¹ÓÃgrokģʽƥÅäÈÕÖ¾£¬²¢½«Ê±¼ä´Áת»»ÎªISO8601ʱ¼äÃûÌá£ÔÚÊä³öÖУ¬½«ÈÕÖ¾Êä³öµ½ElasticsearchÖС£

4.3 Éó²éÈÝÆ÷ÈÕÖ¾

ÔÚÍê³ÉÒÔÉÏÉèÖúó£¬ÎÒÃÇ¿ÉÒÔÉó²éÈÝÆ÷µÄÈÕÖ¾²¢¾ÙÐÐÆÊÎö¡£ÔÚKibanaÃæ°åÖУ¬Ñ¡Ôñ¡°Discover¡±Ò³Ã棬¿ÉÒÔ¿´µ½ËùÓеÄÈÕÖ¾ÐÅÏ¢¡£

Èý¡¢Ê¹ÓÃDocker¾ÙÐÐÈÝÆ÷Òì³£ÅŲé

DockerÖÐÈÝÆ÷µÄÒì³£ÅŲéÒ²ÊǺÜÊÇÖ÷ÒªµÄ¡£ÈÝÆ÷µÄÒì³£¿ÉÄܵ¼ÖÂÓ¦ÓóÌÐòÎÞ·¨Õý³£ÔËÐУ¬ÉõÖÁ»áµ¼ÖÂÕû¸öϵͳµÄÍ߽⡣ÏÂÃæÏÈÈÝÔõÑùʹÓÃDocker¾ÙÐÐÈÝÆ÷µÄÒì³£ÅŲé¡£

1. Éó²éÈÝÆ÷״̬

ÎÒÃÇ¿ÉÒÔʹÓÃÈçÏÂÏÂÁîÀ´Éó²éÈÝÆ÷µÄ״̬£º

docker ps -a

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´ËÏÂÁÁгöËùÓеÄÈÝÆ÷¼°Æä״̬¡£

2. ½øÈëÈÝÆ÷¾ÙÐе÷ÊÔ

ÔÚÉó²éÈÝÆ÷״̬ºó£¬ÎÒÃÇ¿ÉÒÔ½øÈëÈÝÆ÷ÖоÙÐе÷ÊÔ¡£Ê¹ÓÃÈçÏÂÏÂÁ¿ÉÒÔ½øÈëµ½ÈÝÆ÷ÖУº

docker exec -it [CONTAINER ID] /bin/bash

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ÆäÖУ¬CONTAINER IDÖ¸µÄÊÇÈÝÆ÷µÄID¡£

3. Éó²éÈÕÖ¾²¢ÆÊÎö

ÔÚ½øÈëµ½ÈÝÆ÷Öкó£¬ÎÒÃÇ¿ÉÒÔÉó²éÈÝÆ÷µÄÈÕÖ¾£¬²¢Æ¾Ö¤ÈÕÖ¾ÐÅÏ¢¾ÙÐе÷ÊÔÆÊÎö¡£ÏêϸÏÂÁîÈçÏ£º

docker logs [CONTAINER ID]

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4. ʹÓù¤¾ß¾ÙÐÐÆÊÎö

ÔÚ¾ÙÐÐÈÝÆ÷Òì³£ÅŲéʱ£¬ÎÒÃÇ¿ÉÒÔʹÓÃһЩ¹¤¾ß¾ÙÐÐ×ÊÖú¡£ÀýÈ磬ÔÚÈÝÆ÷ÖÐ×°ÖÃDebug¹¤¾ß£¬ÒÔÀû±ãÎÒÃǾÙÐе÷ÊÔ¡£ÏÂÃæÊÇÒ»¸öÀý×Ó£º

docker run -d --name nginx-debug --entrypoint /usr/bin/sleep nginx 9d
docker pause nginx-debug
docker network connect [NETWORK] nginx-debug
docker attach --sig-proxy=false nginx-debug

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ËÄ¡¢×ܽá

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