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Docker ÓÐÈý¸öÌØ¶¨µÄ¹¦ÄÜ£¬ÒÔ°ïÖú½¨Á¢Óë»·¾³Î޹صÄϵͳ£º

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WordPress ʹÓÃÒ»¸öÃûΪMySQL µÄÊý¾Ý¿â³ÌÐòÀ´´æ´¢´ó²¿·ÖÊý¾Ý£¬ËùÒÔÏÈÈ·±£ÔËÐÐWordPress µÄÈÝÆ÷ÊÇÖ»¶ÁÎļþϵͳ£¬ÊÇÒ»¸öºÃÖ÷Òâ¡£

1 Ö»¶ÁÎļþϵͳ

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ΪÁËÔÚ¿Í»§ÏµÍ³ÉÏʹÓÃ--read-only ±êÖ¾£¬´ÓWordPress ¾µÏñ´´½¨ºÍÆô¶¯Ò»¸öÈÝÆ÷£º

docker run -d --name wp --read-only wordpress:4

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docker inspect --format "{{.State.Running}}" wp

docker inspect ÃüÁÏÔʾDocker Ϊ¸ÃÈÝÆ÷±£ÁôµÄËùÓÐÔªÊý¾Ý£¨Ò»¸öJSON Îļþ£©¡£

¸ñʽѡÏî»á¸Ä±äÔªÊý¾Ý¡£³ýÁ˸ÃÈÝÆ÷µÄÔËÐÐ״̬£¬±¾ÀýÖÐÆä»áÂ˳ýÔªÊý¾ÝµÄËùÓÐ×ֶΡ£Õâ¸öÃüÁ¼òµ¥µØÊä³öΪ´íÎó¡£

ÔÚÕâÖÖÇé¿öÏ£¬ÈÝÆ÷ûÓÐÔËÐС£ÎªÁËÕÒ³öÔ­Òò£¬¼ì²éÈÝÆ÷ÖеÄÈÕÖ¾£º

docker logs wp

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error: missing 
WORDPRESS_DB_HOST and MYSQL_PORT_3306_TCP
environment variables
Did you forget to --link some_mysql_container:mysql
or set an external db with -e WORDPRESS_DB_HOST=hostname:port?

¿´ÆðÀ´WordPress ÓÐÒ»¸öMySQL Êý¾Ý¿âµÄÒÀÀµ¹ØÏµ¡£Êý¾Ý¿âÊÇÒ»¸ö³ÌÐò£¬¸ù¾Ý¼ìË÷ºÍËÑË÷·½Ê½´æ´¢Êý¾Ý¡£ºÃÏûÏ¢ÊÇ£¬Äã¿ÉÒÔʹÓÃDocker °²×°MySQL£¬¾ÍÏñ°²×°WordPress£º

docker run -d --name wpdb \
-e MYSQL_ROOT_PASSWORD=ch2demo \
mysql:5

Ò»µ©Æô¶¯ºó£¬»á´´½¨Ò»¸ö²»Í¬µÄWordPress ÈÝÆ÷£¬²¢Á´½Óµ½Õâ¸öеÄÊý¾Ý¿âÈÝÆ÷ÖУº

ÔÙ¼ì²éÒ»´Î£¬WordPress ÊÇ·ñÕý³£ÔËÐУº

docker inspect --format "{{.State.Running}}" wp2

Äã¿ÉÒÔµÃÖªWordPress ʧ°ÜºóÖØÐÂÆô¶¯¡£¼ì²éÈÕÖ¾ÒÔÈ·¶¨Ô­Òò£º

docker logs wp2

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... Read-only file system: AH00023: 
Couldn't create the rewrite-map mutex (file /var/lock/apache2/rewrite-map.1)

ͬÑùÊÇWordPress ʧ°ÜºóÖØÐÂÆô¶¯£¬µ«Õâ´ÎµÄÎÊÌâÊÇ£¬ËüÊÔͼдһ¸öËø¶¨Îļþµ½Ìض¨µÄλÖá£ÕâÊÇÆô¶¯µÄ±ØÒª×é³É²¿·Ö£¬²¢ÎÞÌØÊâ¡£ÔÚÕâ¸öʾÀýÖУ¬ÐèҪΪֻ¶ÁÎļþϵͳÔö¼ÓÒì³£´¦Àí¡£ÄãÐèҪʹÓþíÀ´×öÕâ¸öÒì³£´¦Àí¡£Ê¹ÓÃÏÂÃæµÄÃüÁîÆô¶¯WordPress£¬²»»áÓÐÈκÎÎÊÌ⣺

¸üа汾ºóÄãÄÜÓõĽű¾¿´ÉÏÈ¥ÏñÊÇÕâÑù£º

SQL_CID=$(docker create -e MYSQL_ROOT_PASSWORD=ch2demo mysql:5)

docker start $SQL_CID
MAILER_CID=$(docker create dockerinaction/ch2_mailer)
docker start $MAILER_CID

WP_CID=$(docker create --link $SQL_CID:mysql -p 80 \
-v /run/lock/apache2/ -v /run/apache2/ \
--read-only wordpress:4)

docker start $WP_CID

AGENT_CID=$(docker create --link $WP_CID:insideweb \
--link $MAILER_CID:insidemailer \
dockerinaction/ch2_agent)

docker start $AGENT_CID

¹§Ï²Ä㣬ÏÖÔÚÄãÓ¦¸ÃÓÐÁËÒ»¸öÕýÔÚÔËÐеÄWordPress ÈÝÆ÷£¡Í¨¹ýʹÓÃÖ»¶ÁÎļþϵͳ£¬ÒÔ¼°Á´½ÓWordPress µ½ÁíÒ»¸öÔËÐÐ×ÅÊý¾Ý¿âµÄÈÝÆ÷£¬¿ÉÒÔÈ·±£ÔËÐÐWordPress ¾µÏñµÄÈÝÆ÷ÓÀÔ¶²»»á¸Ä±ä¡£ÕâÒâζ×Å£¬Èç¹ûÔËÐпͻ§µÄWordPress ²©¿Í³ÌÐòµÄ»úÆ÷³öÁËÎÊÌ⣬¿ÉÇáËÉÔÚÆäËûµØ·½Æô¶¯¸ÃÈÝÆ÷µÄÁíÒ»¸ö¸±±¾¡£

µ«ÊÇÕâÒ»Éè¼ÆÓÐÁ½¸öÎÊÌâ¡£Ê×ÏÈ£¬Êý¾Ý¿âºÍWordPress µÄÈÝÆ÷ÔËÐÐÔÚͬһ¸ö»úÆ÷ÉÏ¡£Æä´Î£¬WordPress ¶ÔÖØÒªµÄÉèÖã¬ÈçÊý¾Ý¿âÃû³Æ¡¢¹ÜÀíÓû§¡¢¹ÜÀíÃÜÂë¡¢Êý¾Ý¿â¼ÓÑεÈʹÓÃĬÈÏÖµ¡£ÎªÁ˽â¾öÕâ¸öÎÊÌ⣬Äã¿ÉÒÔ´´½¨¶à¸ö°æ±¾µÄWordPress Èí¼þ£¬Ã¿Ò»¸ö¿Í»§¶¼ÓÐÒ»¸öÌØÊâµÄÅäÖá£ÕâÑù×ö»áʹ¼òµ¥µÄÅäÖýű¾±ä³ÉÒ»¸öÔÚ´´½¨¾µÏñʱдÈëÎļþµÄ¹ÖÎͨ¹ýʹÓû·¾³±äÁ¿À´×¢ÈëÅäÖÃÔòÊÇÒ»¸ö¸üºÃµÄ·½Ê½¡£

2 »·¾³±äÁ¿µÄ×¢Èë

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Docker ʹÓû·¾³±äÁ¿À´´«´ïÏà¹ØÐÅÏ¢£¬°üÀ¨ÈÝÆ÷µÄÊØ»¤Ñ¡Ïî¡¢ÈÝÆ÷µÄÖ÷»úÃû£¬ÒÔ¼°ÆäËûÔÚÈÝÆ÷ÖÐÔËÐгÌÐòµÄʵÓÃÐÅÏ¢¡£Docker »¹ÎªÓû§ÌṩÁËÒ»¸ö»úÖÆ£¬¿É½«»·¾³±äÁ¿×¢Èëµ½Ò»¸öеÄÈÝÆ÷¡£ÄÇЩÆÚÍûͨ¹ý»·¾³±äÁ¿»ñÈ¡ÖØÒªÐÅÏ¢µÄ³ÌÐò£¬¿ÉÔÚÈÝÆ÷´´½¨Ê±¾Í½øÐÐÅäÖá£ÐÒÔ˵ÄÊÇ£¬WordPress ¾ÍÊÇÕâÑùÒ»¸ö³ÌÐò¡£

ÔÚÉîÈëWordPress µÄϸ½Ú֮ǰ£¬³¢ÊÔ×¢ÈëºÍ¹Û²ìÄãµÄ»·¾³±äÁ¿¡£UNIX ÃüÁîenv ÏÔʾµ±Ç°Ö´ÐÐÉÏÏÂÎÄ£¨ÖÕ¶Ë£©ÖеÄËùÓл·¾³±äÁ¿¡£Òª²é¿´×¢ÈëµÄ»·¾³±äÁ¿£¬ÇëʹÓÃÒÔÏÂÃüÁ

--env ±êÖ¾»ò-e Ëõд£¬¿ÉÓÃÓÚ×¢ÈëÈκλ·¾³±äÁ¿¡£Èç¹û±äÁ¿ÒѾ­ÓɾµÏñ»òDocker ÉèÖã¬Ôò¸ÃÖµ½«±»¸²¸Ç¡£ÈÝÆ÷ÄÚ²¿ÔËÐгÌÐòµÄ·½Ê½£¬¿ÉÒÔÒÀÀµÓÚÕâÖÖ±äÁ¿¡£WordPress ×ñÑ­ÒÔÏ»·¾³±äÁ¿£º


WORDPRESS_DB_HOST
WORDPRESS_DB_USER
WORDPRESS_DB_PASSWORD
WORDPRESS_DB_NAME
WORDPRESS_AUTH_KEY
WORDPRESS_SECURE_AUTH_KEY
WORDPRESS_LOGGED_IN_KEY
WORDPRESS_NONCE_KEY
WORDPRESS_AUTH_SALT
WORDPRESS_SECURE_AUTH_SALT
WORDPRESS_LOGGED_IN_SALT
WORDPRESS_NONCE_SALT

Ìáʾ Õâ¸öʾÀýºöÂÔÁËKEY ºÍSALT ±äÁ¿£¬µ«ÈκÎʵ¼ÊµÄÉú²úϵͳ¾ø¶ÔÓ¦¸ÃÉèÖÃÕâЩֵ¡£

¿ªÊ¼Ö®Ç°£¬ÄãÓ¦¸Ã½â¾öÊý¾Ý¿âºÍWordPress ÈÝÆ÷ÔÚͬһ¸ö»úÆ÷ÉÏÔËÐеÄÎÊÌâ¡£²»ÊÇʹÓÃÁ´½ÓÀ´Âú×ãWordPress µÄÊý¾Ý¿âÒÀÀµ£¬¶øÊÇ×¢ÈëWORDPRESS_DB_HOST ±äÁ¿µÄÖµ£º

docker create --env WORDPRESS_DB_HOST=<my database hostname> wordpress:4

Õâ¸öʾÀý»á´´½¨£¨²¢²»Æô¶¯£©WordPress ÈÝÆ÷¡£²»¹ÜÄãÔÚÖÐÖ¸¶¨µÄÊÇʲô£¬¸ÃÈÝÆ÷¶¼»áÊÔ×ÅÁ¬ÉÏÒ»¸öMySQL Êý¾Ý¿â¡£

ÓÉÓÚÔ¶³ÌÊý¾Ý¿â¿ÉÄܲ»»áʹÓÃÈκÎĬÈϵÄÓû§ÃûºÍÃÜÂ룬Äã¾Í±ØÐëͬʱעÈëÕâЩÉèÖ᣼ÙÉèÊý¾Ý¿â¹ÜÀíÔ±ÊÇÑøÃ¨°®ºÃÕßÇÒÍ´ºÞÇ¿ÃÜÂ룺

docker create \
--env WORDPRESS_DB_HOST=<my database hostname> \
--env WORDPRESS_DB_USER=site_admin \
--env WORDPRESS_DB_PASSWORD=MeowMix42 \
wordpress:4

ʹÓû·¾³±äÁ¿×¢ÈëÕâÒ»·½·¨£¬ÄܰïÖúÄãÇø·ÖWordPress ÈÝÆ÷ºÍMySQL ÈÝÆ÷Ö®¼äµÄÎïÀíÁªÏµ¡£ÓÉÓÚÊý¾Ý¿âºÍ¿Í»§µÄWordPress ÍøÕ¾¶¼ÔÚͬһ̨»úÆ÷ÉÏ£¬ÄãÈÔÈ»ÐèÒª½â¾öÇ°ÃæÌáµ½µÄµÚ¶þ¸öÎÊÌ⡪¡ªËùÓеÄÍøÕ¾¶¼Ê¹ÓÃÏàͬµÄĬÈÏÊý¾Ý¿âÃû³Æ¡£ÄãÐèҪΪÿһ¸ö¶ÀÁ¢µÄÕ¾µãÉèÖÃÊý¾Ý¿âÃû³ÆÒÔ»·¾³±äÁ¿µÄ·½Ê½×¢È룺

ÄãÒѾ­½â¾öÁËÕâЩÎÊÌ⣬ÏÖÔÚ¿ÉÒÔÐÞ¸ÄÅäÖýű¾ÁË¡£Ê×ÏÈ£¬ÉèÖûúÆ÷Ö»ÄÜÔËÐÐÒ»¸öMySQL ÈÝÆ÷£º

DB_CID=$(docker run -d -e MYSQL_ROOT_PASSWORD=ch2demo mysql:5)
MAILER_CID=$(docker run -d dockerinaction/ch2_mailer)

ÄÇÃ´ÍøÕ¾ÅäÖýű¾½«ÊÇÕâÑùµÄ£º

Õâ¸öнű¾½«ÎªÃ¿Ò»Î»¿Í»§Æô¶¯WordPress ʵÀýºÍ¼à¿ØÆ÷£¬²¢½«ÕâЩÈÝÆ÷ÒÔ¼°Ò»¸öµ¥¶ÀµÄÓʼþ³ÌÐòºÍMySQL Êý¾Ý¿â±Ë´ËÁ¬½Ó¡£WordPress ÈÝÆ÷ÔÚ±»Ïú»Ù¡¢ÖØÐÂÆô¶¯¡¢Éý¼¶µÄͬʱ£¬ÍêÈ«²»Óõ£ÐÄÊý¾Ý»á¶ªÊ§¡£ÈçͼËùʾ¾ÍÊÇÕâÖּܹ¹¡£

ÿ¸öWordPress ºÍ¼à¿ØÆ÷ÈÝÆ÷ʹÓÃÏàͬµÄÊý¾Ý¿âºÍÓʼþ·þÎñ

¿Í»§¶Ôµ±Ç°½»¸¶µÄËùÓй¤×÷³É¹ûºÜÂúÒâ¡£µ«ÓÐÒ»¼þÊ¿ÉÄÜ»á±È½Ï·³ÈË¡£ÔÚÔçÆÚµÄ²âÊÔÖУ¬Äã·¢ÏÖ¼àÊÓÆ÷ÔÚ¸ÃÍøÕ¾²»¿ÉÓÃʱ£¬µÄÈ·¿ÉÒÔ׼ȷ֪ͨÓʼþ·þÎñÆ÷£¬µ«ÖØÐÂÆô¶¯¸ÃÍøÕ¾ºÍ¼à¿ØÆ÷ÐèÒªÊÖ¶¯ÊµÏÖ¡£ÒªÊÇϵͳÔÚ¼ì²âµ½¹ÊÕÏʱ£¬Äܳ¢ÊÔ×Ô¶¯»Ö¸´¾Í¸üºÃÁË¡£Docker ¶Ô´ËÌṩÁËÖØÆôµÄ²ßÂÔ£¬µ«ÈÔ²»¹»Îȶ¨¡£

   
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