🥇ການຕິດຕັ້ງ LeoFS ແຈກຢາຍການເກັບຮັກສາວັດຖຸທີ່ທົນທານຕໍ່ຄວາມຜິດ ເຫມາະສົມກັບລູກຄ້າທີ່ໃຊ້ S3, NFS

ອີງຕາມການ Opennet: LeoFS — ການເກັບຮັກສາວັດຖຸທີ່ທົນທານຕໍ່ຄວາມຜິດແຈກຢາຍ LeoFS, ເຂົ້າກັນໄດ້ກັບລູກຄ້າທີ່ໃຊ້ Amazon S3 API ແລະ REST-API, ແລະຍັງສະຫນັບສະຫນູນໂຫມດເຄື່ອງແມ່ຂ່າຍ NFS. ມີການເພີ່ມປະສິດທິພາບສໍາລັບການເກັບຮັກສາວັດຖຸທັງຂະຫນາດນ້ອຍແລະຂະຫນາດໃຫຍ່ຫຼາຍ, ມີກົນໄກການເກັບຮັກສາໄວ້ໃນຖານຄວາມຈໍາ, ແລະການຈໍາລອງການເກັບຮັກສາລະຫວ່າງສູນຂໍ້ມູນແມ່ນເປັນໄປໄດ້. ເປົ້າຫມາຍຂອງໂຄງການປະກອບມີການບັນລຸຄວາມຫນ້າເຊື່ອຖື 99.9999999% ໂດຍຜ່ານການຊ້ໍາຊ້ອນຂອງຊ້ໍາກັນແລະການລົບລ້າງຈຸດດຽວຂອງຄວາມລົ້ມເຫຼວ. ລະຫັດໂຄງການແມ່ນຂຽນໃນ Erlang.

LeoFS ປະກອບດ້ວຍສາມອົງປະກອບ:

ການເກັບຮັກສາ LeoFS — ຮັບໃຊ້ການດໍາເນີນງານຂອງການເພີ່ມ, ດຶງແລະລຶບວັດຖຸແລະ metadata, ມີຄວາມຮັບຜິດຊອບສໍາລັບການປະຕິບັດການຈໍາລອງ, ການຟື້ນຕົວແລະການຈັດຄິວການຮ້ອງຂໍຂອງລູກຄ້າ.
LeoFS Gateway — ຮັບໃຊ້ການຮ້ອງຂໍ HTTP ແລະປ່ຽນເສັ້ນທາງການຕອບສະຫນອງກັບລູກຄ້າໂດຍໃຊ້ REST-API ຫຼື S3-API, ຮັບປະກັນການເກັບຂໍ້ມູນທີ່ຕ້ອງການທີ່ສຸດໃນຫນ່ວຍຄວາມຈໍາແລະໃນແຜ່ນ.
ຜູ້ຈັດການ LeoFS — ຕິດຕາມກວດກາການດໍາເນີນງານຂອງ LeoFS Gateway ແລະ LeoFS ການເກັບຮັກສາ nodes, ຕິດຕາມກວດກາສະຖານະພາບຂອງຂໍ້ແລະການກວດສອບ checksums. ຮັບປະກັນຄວາມສົມບູນຂອງຂໍ້ມູນແລະຄວາມພ້ອມໃນການເກັບຮັກສາສູງ.

ໃນບົດຄວາມນີ້ພວກເຮົາຈະຕິດຕັ້ງ Leofs ໂດຍໃຊ້ ansible-playbook ແລະທົດສອບ S3, NFS.

ຖ້າຫາກວ່າທ່ານພະຍາຍາມທີ່ຈະຕິດຕັ້ງ LeoFS ໂດຍນໍາໃຊ້ playbooks ຢ່າງເປັນທາງການ, ທ່ານຈະພົບກັບຄວາມຜິດພາດຕ່າງໆ: 1,2. ໃນບົດຂຽນນີ້, ຂ້ອຍຈະຂຽນສິ່ງທີ່ຕ້ອງເຮັດເພື່ອຫຼີກເວັ້ນຄວາມຜິດພາດເຫຼົ່ານີ້.

ບ່ອນທີ່ທ່ານຈະດໍາເນີນການ ansible-playbook, ທ່ານຈໍາເປັນຕ້ອງໄດ້ຕິດຕັ້ງ netcat.

ຕົວຢ່າງສິນຄ້າຄົງຄັງ

ຕົວຢ່າງສິນຄ້າຄົງຄັງ (ໃນ hosts.sample repository):

# Please check roles/common/vars/leofs_releases for available versions
[all:vars]
leofs_version=1.4.3
build_temp_path="/tmp/leofs_builder"
build_install_path="/tmp/"
build_branch="master"
source="package"

#[builder]
#172.26.9.177

# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_0]
172.26.9.176

# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_1]
172.26.9.178

[leo_storage]
172.26.9.179 leofs_module_nodename=S0@172.26.9.179
172.26.9.181 leofs_module_nodename=S0@172.26.9.181
172.26.9.182 leofs_module_nodename=S0@172.26.9.182
172.26.9.183 leofs_module_nodename=S0@172.26.9.183

[leo_gateway]
172.26.9.180 leofs_module_nodename=G0@172.26.9.180
172.26.9.184 leofs_module_nodename=G0@172.26.9.184

[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storage

ການກະກຽມເຄື່ອງແມ່ຂ່າຍ

ການປິດໃຊ້ງານ Selinux. ຂ້າພະເຈົ້າຫວັງວ່າຊຸມຊົນຈະສ້າງນະໂຍບາຍ Selinux ສໍາລັບ LeoFS.

    - name: Install libselinux as prerequisite for SELinux Ansible module
      yum:
        name: "{{item}}"
        state: latest
      with_items:
        - libselinux-python
        - libsemanage-python

    - name: Disable SELinux at next reboot
      selinux:
        state: disabled

    - name: Set SELinux in permissive mode until the machine is rebooted
      command: setenforce 0
      ignore_errors: true
      changed_when: false

ການຕັ້ງຄ່າ netcat и redhat-lsb-core. netcat ຈໍາເປັນສໍາລັບ leofs-adm, redhat-lsb-core ຕ້ອງການເພື່ອກໍານົດສະບັບ OS ທີ່ນີ້.

    - name: Install Packages
      yum: name={{ item }} state=present
      with_items:
        - nmap-ncat
        - redhat-lsb-core

ການສ້າງ leofs ຜູ້ໃຊ້ແລະເພີ່ມມັນເຂົ້າໄປໃນກຸ່ມລໍ້

    - name: Create user leofs
      group:
        name: leofs
        state: present

    - name: Allow 'wheel' group to have passwordless sudo
      lineinfile:
        dest: /etc/sudoers
        state: present
        regexp: '^%wheel'
        line: '%wheel ALL=(ALL) NOPASSWD: ALL'
        validate: 'visudo -cf %s'

    - name: Add the user 'leofs' to group 'wheel'
      user:
        name: leofs
        groups: wheel
        append: yes

ການຕິດຕັ້ງ Erlang

    - name: Remote erlang-20.3.8.23-1.el7.x86_64.rpm install with yum
      yum: name=https://github.com/rabbitmq/erlang-rpm/releases/download/v20.3.8.23/erlang-20.3.8.23-1.el7.x86_64.rpm

ສະບັບເຕັມຂອງ Ansible playbook ທີ່ຖືກແກ້ໄຂສາມາດພົບໄດ້ທີ່ນີ້: https://github.com/patsevanton/leofs_ansible

ການຕິດຕັ້ງ, ການຕັ້ງຄ່າ, ເປີດຕົວ

ຕໍ່ໄປພວກເຮົາປະຕິບັດເປັນລາຍລັກອັກສອນໃນ https://github.com/leo-project/leofs_ansible ໂດຍບໍ່ມີ build_leofs.yml

## Install LeoFS
$ ansible-playbook -i hosts install_leofs.yml

## Config LeoFS
$ ansible-playbook -i hosts config_leofs.yml

## Start LeoFS
$ ansible-playbook -i hosts start_leofs.yml

ກຳລັງກວດສອບສະຖານະກຸ່ມຢູ່ໃນ Primary LeoManager

leofs-adm status

ປະຖົມ ແລະ ມັດທະຍົມສາມາດເຫັນໄດ້ໃນບັນທຶກຂອງ ansible-playbook

ການຕິດຕັ້ງບ່ອນເກັບມ້ຽນວັດຖຸ LeoFS ທີ່ທົນທານຕໍ່ຄວາມຜິດທີ່ແຈກຢາຍ, ເຫມາະສົມກັບລູກຄ້າທີ່ໃຊ້ S3, NFS

ຜົນຜະລິດຈະເປັນແບບນີ້

 [System Confiuration]
-----------------------------------+----------
 Item                              | Value    
-----------------------------------+----------
 Basic/Consistency level
-----------------------------------+----------
                    system version | 1.4.3
                        cluster Id | leofs_1
                             DC Id | dc_1
                    Total replicas | 2
          number of successes of R | 1
          number of successes of W | 1
          number of successes of D | 1
 number of rack-awareness replicas | 0
                         ring size | 2^128
-----------------------------------+----------
 Multi DC replication settings
-----------------------------------+----------
 [mdcr] max number of joinable DCs | 2
 [mdcr] total replicas per a DC    | 1
 [mdcr] number of successes of R   | 1
 [mdcr] number of successes of W   | 1
 [mdcr] number of successes of D   | 1
-----------------------------------+----------
 Manager RING hash
-----------------------------------+----------
                 current ring-hash | a0314afb
                previous ring-hash | a0314afb
-----------------------------------+----------

 [State of Node(s)]
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
 type  |         node         |    state     | rack id |  current ring  |   prev ring    |          updated at         
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
  S    | S0@172.26.9.179      | running      |         | a0314afb       | a0314afb       | 2019-12-05 10:33:47 +0000
  S    | S0@172.26.9.181      | running      |         | a0314afb       | a0314afb       | 2019-12-05 10:33:47 +0000
  S    | S0@172.26.9.182      | running      |         | a0314afb       | a0314afb       | 2019-12-05 10:33:47 +0000
  S    | S0@172.26.9.183      | attached     |         |                |                | 2019-12-05 10:33:58 +0000
  G    | G0@172.26.9.180      | running      |         | a0314afb       | a0314afb       | 2019-12-05 10:33:49 +0000
  G    | G0@172.26.9.184      | running      |         | a0314afb       | a0314afb       | 2019-12-05 10:33:49 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------

ການສ້າງຜູ້ໃຊ້

ສ້າງຜູ້ໃຊ້ Leofs:

leofs-adm create-user leofs leofs

  access-key-id: 9c2615f32e81e6a1caf5
  secret-access-key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb

ລາຍຊື່ຜູ້ໃຊ້:

leofs-adm get-users
user_id     | role_id | access_key_id          | created_at                
------------+---------+------------------------+---------------------------
_test_leofs | 9       | 05236                  | 2019-12-02 06:56:49 +0000
leofs       | 1       | 9c2615f32e81e6a1caf5   | 2019-12-02 10:43:29 +0000

ສ້າງ Bucket

ໄດ້ເຮັດຖັງ

leofs-adm add-bucket leofs 9c2615f32e81e6a1caf5
OK

ບັນຊີລາຍຊື່ຖັງ:

 leofs-adm get-buckets
cluster id   | bucket   | owner  | permissions      | created at                
-------------+----------+--------+------------------+---------------------------
leofs_1      | leofs    | leofs  | Me(full_control) | 2019-12-02 10:44:02 +0000

ຕັ້ງຄ່າ s3cmd

ໃນພາກສະຫນາມ HTTP Proxy server name ລະບຸ IP ຂອງເຊີບເວີ Gateway

s3cmd --configure 

Enter new values or accept defaults in brackets with Enter.
Refer to user manual for detailed description of all options.

Access key and Secret key are your identifiers for Amazon S3. Leave them empty for using the env variables.
Access Key [9c2615f32e81e6a1caf5]: 
Secret Key [8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb]: 
Default Region [US]: 

Use "s3.amazonaws.com" for S3 Endpoint and not modify it to the target Amazon S3.
S3 Endpoint [s3.amazonaws.com]: 

Use "%(bucket)s.s3.amazonaws.com" to the target Amazon S3. "%(bucket)s" and "%(location)s" vars can be used
if the target S3 system supports dns based buckets.
DNS-style bucket+hostname:port template for accessing a bucket [%(bucket)s.s3.amazonaws.com]: leofs

Encryption password is used to protect your files from reading
by unauthorized persons while in transfer to S3
Encryption password: 
Path to GPG program [/usr/bin/gpg]: 

When using secure HTTPS protocol all communication with Amazon S3
servers is protected from 3rd party eavesdropping. This method is
slower than plain HTTP, and can only be proxied with Python 2.7 or newer
Use HTTPS protocol [No]: 

On some networks all internet access must go through a HTTP proxy.
Try setting it here if you can't connect to S3 directly
HTTP Proxy server name [172.26.9.180]: 
HTTP Proxy server port [8080]: 

New settings:
  Access Key: 9c2615f32e81e6a1caf5
  Secret Key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb
  Default Region: US
  S3 Endpoint: s3.amazonaws.com
  DNS-style bucket+hostname:port template for accessing a bucket: leofs
  Encryption password: 
  Path to GPG program: /usr/bin/gpg
  Use HTTPS protocol: False
  HTTP Proxy server name: 172.26.9.180
  HTTP Proxy server port: 8080

Test access with supplied credentials? [Y/n] Y
Please wait, attempting to list all buckets...
Success. Your access key and secret key worked fine :-)

Now verifying that encryption works...
Not configured. Never mind.

Save settings? [y/N] y
Configuration saved to '/home/user/.s3cfg'

ຖ້າທ່ານໄດ້ຮັບຂໍ້ຜິດພາດ ERROR: S3 error: 403 (AccessDenied): Access Denied:

s3cmd put test.py s3://leofs/
upload: 'test.py' -> 's3://leofs/test.py'  [1 of 1]
 382 of 382   100% in    0s     3.40 kB/s  done
ERROR: S3 error: 403 (AccessDenied): Access Denied

ຫຼັງຈາກນັ້ນ, ທ່ານຈໍາເປັນຕ້ອງປ່ຽນ signature_v3 ເປັນ True ໃນ s2cmd config. ລາຍລະອຽດຢູ່ໃນນີ້ ບັນຫາ.

ຖ້າ signature_v2 ເປັນ False, ມັນຈະມີຂໍ້ຜິດພາດເຊັ່ນນີ້:

WARNING: Retrying failed request: /?delimiter=%2F (getaddrinfo() argument 2 must be integer or string)
WARNING: Waiting 3 sec...
WARNING: Retrying failed request: /?delimiter=%2F (getaddrinfo() argument 2 must be integer or string)
WARNING: Waiting 6 sec...
ERROR: Test failed: Request failed for: /?delimiter=%2F

ການທົດສອບການໂຫຼດ

ສ້າງໄຟລ໌ 1GB

fallocate -l 1GB 1gb

ອັບໂຫຼດມັນໃສ່ Leofs

time s3cmd put 1gb s3://leofs/
real    0m19.099s
user    0m7.855s
sys 0m1.620s

ສະຖິຕິ

leofs-adm du ສໍາລັບ 1 node:

leofs-adm du S0@172.26.9.179
 active number of objects: 156
  total number of objects: 156
   active size of objects: 602954495
    total size of objects: 602954495
     ratio of active size: 100.0%
    last compaction start: ____-__-__ __:__:__
      last compaction end: ____-__-__ __:__:__

ພວກເຮົາເຫັນວ່າບົດສະຫຼຸບແມ່ນບໍ່ມີຂໍ້ມູນຫຼາຍ.

ມາເບິ່ງວ່າໄຟລ໌ນີ້ຢູ່ໃສ.
leofs-adm whereis leofs/1gb

leofs-adm whereis leofs/1gb
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
 del?  |         node         |             ring address             |    size    |   checksum   |  has children  |  total chunks  |     clock      |             when            
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
       | S0@172.26.9.181      | 657a9f3a3db822a7f1f5050925b26270     |    976563K |   a4634eea55 | true           |             64 | 598f2aa976a4f  | 2019-12-05 10:48:15 +0000
       | S0@172.26.9.182      | 657a9f3a3db822a7f1f5050925b26270     |    976563K |   a4634eea55 | true           |             64 | 598f2aa976a4f  | 2019-12-05 10:48:15 +0000

ເປີດໃຊ້ NFS

ພວກເຮົາເປີດໃຊ້ NFS ຢູ່ໃນເຊີບເວີ Leo Gateway 172.26.9.184.

ຕິດຕັ້ງ nfs-utils ໃນເຄື່ອງແມ່ຂ່າຍແລະລູກຄ້າ

sudo yum install nfs-utils

ອີງຕາມຄໍາແນະນໍາ, ພວກເຮົາຈະແກ້ໄຂໄຟລ໌ການຕັ້ງຄ່າ /usr/local/leofs/current/leo_gateway/etc/leo_gateway.conf

protocol = nfs

ໃນເຊີບເວີ 172.26.9.184 ແລ່ນ rpcbind ແລະ leofs-gateway

sudo service rpcbind start
sudo service leofs-gateway restart

ໃນເຊີບເວີທີ່ leo_manager ກໍາລັງແລ່ນ, ສ້າງຖັງສໍາລັບ NFS ແລະສ້າງລະຫັດສໍາລັບການເຊື່ອມຕໍ່ກັບ NFS

leofs-adm add-bucket test 05236
leofs-adm gen-nfs-mnt-key test 05236 ip-адрес-nfs-клиента

ກຳລັງເຊື່ອມຕໍ່ກັບ NFS

sudo mkdir /mnt/leofs
## for Linux - "sudo mount -t nfs -o nolock <host>:/<bucket>/<token> <dir>"
sudo mount -t nfs -o nolock ip-адрес-nfs-сервера-там-где-у-вас-установлен-gateway:/bucket/access_key_id/ключ-полученный-от-gen-nfs-mnt-key /mnt/leofs
sudo mount -t nfs -o nolock 172.26.9.184:/test/05236/bb5034f0c740148a346ed663ca0cf5157efb439f /mnt/leofs

ເບິ່ງພື້ນທີ່ດິດຜ່ານ NFS client

ພື້ນທີ່ດິສກ໌, ໂດຍຄໍານຶງເຖິງວ່າແຕ່ລະ node ການເກັບຮັກສາມີແຜ່ນ 40GB (3 nodes ແລ່ນ, 1 node ທີ່ຕິດຄັດມາ):

df -hP
Filesystem                                                         Size  Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b   60G  3.6G   57G   6% /mnt/leofs

ການຕິດຕັ້ງ LeoFS ກັບ 6 nodes ການເກັບຮັກສາ.

ສິນຄ້າຄົງຄັງ (ໂດຍບໍ່ມີການ builder):

# Please check roles/common/vars/leofs_releases for available versions
[all:vars]
leofs_version=1.4.3
build_temp_path="/tmp/leofs_builder"
build_install_path="/tmp/"
build_branch="master"
source="package"

# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_0]
172.26.9.177

# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_1]
172.26.9.176

[leo_storage]
172.26.9.178 leofs_module_nodename=S0@172.26.9.178
172.26.9.179 leofs_module_nodename=S0@172.26.9.179
172.26.9.181 leofs_module_nodename=S0@172.26.9.181
172.26.9.182 leofs_module_nodename=S0@172.26.9.182
172.26.9.183 leofs_module_nodename=S0@172.26.9.183
172.26.9.185 leofs_module_nodename=S0@172.26.9.185

[leo_gateway]
172.26.9.180 leofs_module_nodename=G0@172.26.9.180
172.26.9.184 leofs_module_nodename=G0@172.26.9.184

[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storage

ຜົນໄດ້ຮັບ leofs-adm ສະຖານະພາບ

ຜົນໄດ້ຮັບ leofs-adm ສະຖານະພາບ

 [System Confiuration]
-----------------------------------+----------
 Item                              | Value    
-----------------------------------+----------
 Basic/Consistency level
-----------------------------------+----------
                    system version | 1.4.3
                        cluster Id | leofs_1
                             DC Id | dc_1
                    Total replicas | 2
          number of successes of R | 1
          number of successes of W | 1
          number of successes of D | 1
 number of rack-awareness replicas | 0
                         ring size | 2^128
-----------------------------------+----------
 Multi DC replication settings
-----------------------------------+----------
 [mdcr] max number of joinable DCs | 2
 [mdcr] total replicas per a DC    | 1
 [mdcr] number of successes of R   | 1
 [mdcr] number of successes of W   | 1
 [mdcr] number of successes of D   | 1
-----------------------------------+----------
 Manager RING hash
-----------------------------------+----------
                 current ring-hash | d8ff465e
                previous ring-hash | d8ff465e
-----------------------------------+----------

 [State of Node(s)]
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
 type  |         node         |    state     | rack id |  current ring  |   prev ring    |          updated at         
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
  S    | S0@172.26.9.178      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:29 +0000
  S    | S0@172.26.9.179      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:29 +0000
  S    | S0@172.26.9.181      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:30 +0000
  S    | S0@172.26.9.182      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:29 +0000
  S    | S0@172.26.9.183      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:29 +0000
  S    | S0@172.26.9.185      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:29 +0000
  G    | G0@172.26.9.180      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:31 +0000
  G    | G0@172.26.9.184      | running      |         | d8ff465e       | d8ff465e       | 2019-12-06 05:18:31 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------

ພື້ນທີ່ດິສກ໌, ໂດຍຄໍານຶງເຖິງວ່າແຕ່ລະ node ການເກັບຮັກສາມີແຜ່ນ 40GB (6 nodes ແລ່ນ):

df -hP
Filesystem                                                         Size  Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b  120G  3.6G  117G   3% /mnt/leofs

ຖ້າ 5 nodes ການເກັບຮັກສາຖືກນໍາໃຊ້

[leo_storage]
172.26.9.178 leofs_module_nodename=S0@172.26.9.178
172.26.9.179 leofs_module_nodename=S1@172.26.9.179
172.26.9.181 leofs_module_nodename=S2@172.26.9.181
172.26.9.182 leofs_module_nodename=S3@172.26.9.182
172.26.9.183 leofs_module_nodename=S4@172.26.9.183

df -hP
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b  100G  3.0G   97G   3% /mnt/leofs

ບັນທຶກ

ບັນທຶກແມ່ນຕັ້ງຢູ່ໃນໄດເລກະທໍລີ /usr/local/leofs/current/*/log

ຊ່ອງ Telegram: SDS ແລະ Cluster FS

ແຫຼ່ງຂໍ້ມູນ: www.habr.com