Docker部署FastDFS文件系统
前几天替公司部署了一套FastDFS文件系统，查询了一下FastDFS是一个类似minIO的文件系统，但还是minIO强大一点。先记一笔吧，虽然现阶段很多都转更为强大的minIO了，还是有需要场景的。废话不多说，直接上操作步骤吧。
1、部署tracker服务
docker run -itd --network=host --name tracker -v /storage/FastDFS/tracker:/var/fdfs -v /storage/FastDFS/conf/tracker.conf:/etc/fdfs/tracker.conf:ro delron/fastdfs tracker
这里采用了host网络模式，运行之前一定要检查一下是否有端口冲突，当然也可以修改端口。端口的配置就是在我映射的
tracker.conf配置中，修改port=字段后的端口，我这里修改成19999端口。
tracker.conf配置如下：
# is this config file disabled
# false for enabled
# true for disabled
disabled=false
# bind an address of this host
# empty for bind all addresses of this host
bind_addr=
# the tracker server port
port=19999
# connect timeout in seconds
# default value is 30s
connect_timeout=30
# network timeout in seconds
# default value is 30s
network_timeout=60
# the base path to store data and log files
base_path=/var/fdfs
# max concurrent connections this server supported
max_connections=256
# accept thread count
# default value is 1
# since V4.07
accept_threads=1
# work thread count, should <= max_connections
# default value is 4
# since V2.00
work_threads=4
# min buff size
# default value 8KB
min_buff_size = 8KB
# max buff size
# default value 128KB
max_buff_size = 128KB
# the method of selecting group to upload files
# 0: round robin
# 1: specify group
# 2: load balance, select the max free space group to upload file
store_lookup=2
# which group to upload file
# when store_lookup set to 1, must set store_group to the group name
store_group=group2
# which storage server to upload file
# 0: round robin (default)
# 1: the first server order by ip address
# 2: the first server order by priority (the minimal)
store_server=0
# which path(means disk or mount point) of the storage server to upload file
# 0: round robin
# 2: load balance, select the max free space path to upload file
store_path=0
# which storage server to download file
# 0: round robin (default)
# 1: the source storage server which the current file uploaded to
download_server=0
# reserved storage space for system or other applications.
# if the free(available) space of any stoarge server in
# a group <= reserved_storage_space,
# no file can be uploaded to this group.
# bytes unit can be one of follows:
### G or g for gigabyte(GB)
### M or m for megabyte(MB)
### K or k for kilobyte(KB)
### no unit for byte(B)
### XX.XX% as ratio such as reserved_storage_space = 10%
reserved_storage_space = 10%
#standard log level as syslog, case insensitive, value list:
### emerg for emergency
### alert
### crit for critical
### error
### warn for warning
### notice
### info
### debug
log_level=info
#unix group name to run this program,
#not set (empty) means run by the group of current user
run_by_group=
#unix username to run this program,
#not set (empty) means run by current user
run_by_user=
# allow_hosts can ocur more than once, host can be hostname or ip address,
# "*" (only one asterisk) means match all ip addresses
# we can use CIDR ips like 192.168.5.64/26
# and also use range like these: 10.0.1.[0-254] and host[01-08,20-25].domain.com
# for example:
# allow_hosts=10.0.1.[1-15,20]
# allow_hosts=host[01-08,20-25].domain.com
# allow_hosts=192.168.5.64/26
allow_hosts=*
# sync log buff to disk every interval seconds
# default value is 10 seconds
sync_log_buff_interval = 10
# check storage server alive interval seconds
check_active_interval = 120
# thread stack size, should >= 64KB
# default value is 64KB
thread_stack_size = 64KB
# auto adjust when the ip address of the storage server changed
# default value is true
storage_ip_changed_auto_adjust = true
# storage sync file max delay seconds
# default value is 86400 seconds (one day)
# since V2.00
storage_sync_file_max_delay = 86400
# the max time of storage sync a file
# default value is 300 seconds
# since V2.00
storage_sync_file_max_time = 300
# if use a trunk file to store several small files
# default value is false
# since V3.00
use_trunk_file = false
# the min slot size, should <= 4KB
# default value is 256 bytes
# since V3.00
slot_min_size = 256
# the max slot size, should > slot_min_size
# store the upload file to trunk file when it's size <= this value
# default value is 16MB
# since V3.00
slot_max_size = 16MB
# the trunk file size, should >= 4MB
# default value is 64MB
# since V3.00
trunk_file_size = 64MB
# if create trunk file advancely
# default value is false
# since V3.06
trunk_create_file_advance = false
# the time base to create trunk file
# the time format: HH:MM
# default value is 02:00
# since V3.06
trunk_create_file_time_base = 02:00
# the interval of create trunk file, unit: second
# default value is 38400 (one day)
# since V3.06
trunk_create_file_interval = 86400
# the threshold to create trunk file
# when the free trunk file size less than the threshold, will create
# the trunk files
# default value is 0
# since V3.06
trunk_create_file_space_threshold = 20G
# if check trunk space occupying when loading trunk free spaces
# the occupied spaces will be ignored
# default value is false
# since V3.09
# NOTICE: set this parameter to true will slow the loading of trunk spaces
# when startup. you should set this parameter to true when neccessary.
trunk_init_check_occupying = false
# if ignore storage_trunk.dat, reload from trunk binlog
# default value is false
# since V3.10
# set to true once for version upgrade when your version less than V3.10
trunk_init_reload_from_binlog = false
# the min interval for compressing the trunk binlog file
# unit: second
# default value is 0, 0 means never compress
# FastDFS compress the trunk binlog when trunk init and trunk destroy
# recommand to set this parameter to 86400 (one day)
# since V5.01
trunk_compress_binlog_min_interval = 0
# if use storage ID instead of IP address
# default value is false
# since V4.00
use_storage_id = false
# specify storage ids filename, can use relative or absolute path
# since V4.00
storage_ids_filename = storage_ids.conf
# id type of the storage server in the filename, values are:
## ip: the ip address of the storage server
## id: the server id of the storage server
# this paramter is valid only when use_storage_id set to true
# default value is ip
# since V4.03
id_type_in_filename = ip
# if store slave file use symbol link
# default value is false
# since V4.01
store_slave_file_use_link = false
# if rotate the error log every day
# default value is false
# since V4.02
rotate_error_log = false
# rotate error log time base, time format: Hour:Minute
# Hour from 0 to 23, Minute from 0 to 59
# default value is 00:00
# since V4.02
error_log_rotate_time=00:00
# rotate error log when the log file exceeds this size
# 0 means never rotates log file by log file size
# default value is 0
# since V4.02
rotate_error_log_size = 0
# keep days of the log files
# 0 means do not delete old log files
# default value is 0
log_file_keep_days = 0
# if use connection pool
# default value is false
# since V4.05
use_connection_pool = false
# connections whose the idle time exceeds this time will be closed
# unit: second
# default value is 3600
# since V4.05
connection_pool_max_idle_time = 3600
# HTTP port on this tracker server
http.server_port=8080
# check storage HTTP server alive interval seconds
# <= 0 for never check
# default value is 30
http.check_alive_interval=30
# check storage HTTP server alive type, values are:
# tcp : connect to the storge server with HTTP port only,
# do not request and get response
# http: storage check alive url must return http status 200
# default value is tcp
http.check_alive_type=tcp
# check storage HTTP server alive uri/url
# NOTE: storage embed HTTP server support uri: /status.html
http.check_alive_uri=/status.html
2、部署storage服务
docker run -itd --network=host --name storage -e TRACKER_SERVER=127.0.0.1:19999 -v /storage/FastDFS/storage:/var/fdfs -v /storage/FastDFS/nginx/conf:/usr/local/nginx/conf -e GROUP_NAME=group1 delron/fastdfs storage
注意⚠️：这里的IP地址需要改成你宿主机的IP地址，端口就是你刚刚设置的端口，然后因为我们为了修改nginx端口更加的方便，所以我们将nginx配置文件映射出来了。nginx配置文件我放Gitee上了，有需要可以前去下载。当然你也可以通过先docker run一个先，然后将里面的配置拷贝出来再重新启动。
3、 问题
问题一
启动与重启失败的话，可以删除/var/fdfs/storage/data目录下的fdfs_storaged.pid 文件，然后重新运行storage, 注意这个pid文件十分重要!!
问题二
tail: cannot open '/var/fdfs/logs/storaged.log' for reading: No such file or directory这个报错的话，可以在映射的那个目录下手动创建一个 storaged.log文件。当然也需要先排查一下第一个问题先，如果无pid后缀文件的话那么手动创建这个日志文件。
4、 测试
到这里基本已经部署完毕了，因为FastDFS不跟miniIO一样有UI界面，所以我们只能通过命令行还测试一下是否可行了。
#先进入storage容器
docker exec -it storage bash
#执行上传图片命令，这里的test.png需要你自行准备的哈。
/usr/bin/fdfs_upload_file /etc/fdfs/client.conf test.png
group1/M00/00/00/CgACD1z7SEuAXrIqAA1eBLGVLow043.png
然后通过url访问http://ip:8888/group1/M00/00/00/CgACD1z7SEuAXrIqAA1eBLGVLow043.png，即可查看到图片
5、 参考链接
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