Cvat: Add update guide

[azhavoro]

My actions before raising this issue

• [x] Read/searched the docs
• [x] Searched past issues

Current Behaviour

There is no update guide and no information how to upgrade CVAT in installation guide.

Possible Solution

Need to add Update Guide (or corresponding section to installation documentation)

Steps to Reproduce (for bugs)

N/A

Context

N/A

Your Environment

N/A

Next steps

N/a

[Shravan1804]

Hi, any news on this one?

[azhavoro]

@Shravan1804 https://github.com/opencv/cvat/blob/develop/cvat/apps/documentation/faq.md#how-to-update-cvat

[aguadopd]

@azhavoro , thanks for the hint.
Regarding backups, the FAQ only says

Before upgrading, please follow the official docker manual and backup all CVAT volumes.

1. When I list the docker volumes in my CVAT server I get a lot of hash-named volumes that I don't know if are important or not:

~/cvat$ docker volume ls
DRIVER              VOLUME NAME
local               0c96f057a0ca243b30f4a3d80a59f075ae6f2e1422e13c8c3aad082a2c78587b
local               2bc23b47b3c678ef6c2dc12f549520f59f64e458463f349d77aacb03ed73febd
local               3ac29ae4e3bf23b560f6c1f0dd63cf1666b231946a86b5a9eecc2d0a9bc8fed1
local               3d3187d7ee6b0e9ba458357d543063e5530d5bafc8423796c35aefa7da44a611
local               03b5fed679ae48e4cf1718fc583c6dedc749d86bddd2c417665c276b5f9ac8d5
local               4d14bcd30d0eaacd1174746cc371b8dc63fcdecc4e76d183deae4763a984a002
local               4f019551082b784ce6e5e4be7048521c5e6123306250dc9c8e113f0d557b4b0a
local               06fb46299a2c0834fa09dd1db1784fb836a89abff768b94316b001eea5267713
local               8af7d84495aa863c4b5657fb0f482d013a6cba07b5ced399b0d64082eb0ec59d
local               9c20c96a9d4628c7614f93f29626babd6dd52b09f6dcb4fc97325120420b9f9d
local               9d8f64002ed02bb06cd254ca3d0cc002a55b94326addeda341229912abd0d0fc
local               034ce8b127506a4c8536585a5a432e9cdfbfe8bfafa467f263534f5cb6f33b8c
local               44a70b41414ff775b17b579510c3837edba45fe31e9301876edfaf14edd3041f
local               46a340f027c839b0acaa54c1c916239bdb377b78cb0e500cdeeefd7e6def87f3
local               50aa46b38d9a6e3131cf7b5a9bbe55f7dad00ebfa1b70461f1cab4364d24a1fe
local               53e81e5660f2150fba919cd5dc950cf170b2a93ceaf76ce3b000a681d4b2d459
local               54ab810d95d88988efaea725eaac422595a79d3dce9806dea57ef88acf8ec9bd
local               222db60a5186a9a6088dd5923c75eeb477960999e14af2dad883e2e25179e0e2
local               0289b8f4531b730a09f5e2bd7eb5b7abf0e4856b6b8b7b8dbe1cb5fb592f8b41
local               426a46a63b8c5422c57d683b6464e1bf6cdd24f55c415119043e4e42c0615814
local               721b3c700b295f6b8b0815916e59377fde272b569b817baba15b68731465fbe8
local               9580d5dd23bc49f641bebced8a3300238d630f9d2f6db259af56d304c111b3ec
local               188795c9cc14dc790552a0d9c15768c7584e599d3f7164e24cf54ea6a1854ef2
local               379439ef413d66d031c4552971f58771814470e0f4a2f1ed67024ef5e27dc9cb
local               a72f5b2fb826aa3de8f30ce3a1f33d72f6815930a3b3526ddc353ca3b9b0dff0
local               b54c14fd84ee4bd45ea05bc5658e752802d5cbece3a476db34ef740203ae5bbc
local               baa2f126fc6dacad0e1c8a9d147bdcaca0f813fd6d50bfd2dbe7cd6d95982c47
local               c0db6a49f3d8418af957a72023a53a20d376588126a3a6fe74a946257589f129
local               c452a707d6ed90556c868f0367640f7fce529b3a36eee18a6da6a3c44f3fe490
local               c26162cbe308bfa757fc22b3e5c4a7d3a2f1442859566f3b4499a7c97d318858
local               ccfc852b44c4d187d9557e883f1b652b79483e5d272d89689b4f986d83f79e28
local               cvat_cvat_data
local               cvat_cvat_db
local               cvat_cvat_keys
local               cvat_cvat_logs
local               cvat_cvat_models
local               cvat_cvat_share
local               d1c7137f48acbdba6b1ac14ff71cadf983a4a084be6dd129848e3620d6ed3015
local               d9e8ecf025a9529a30b60bb31708755bd49b95a96e364b74814cc75cb415e090
local               d28ac58e7ec21c914fdc0f96336307b217e2859c18b3fed7458d382b078f1141
local               d0184b4731fa839f4b40ff087508c1e0a86cadfdcb02e88af835305ef3cec164
local               ecb4837590be23a5c456551db1fc3afd24d147a2397ea4f7ce4d1ff2534d5e83
local               f0b9a702a638072ee6db13fac1e10e9ae820fafed267b4a0389d4f0765ea8113
local               fb6ce5f0407e99f4b9c66c7a400420a95bb523684f6640728ed21298b5826316
local               fefbb2c80c666ea2e82b3217b35b7f1d78675ffda865ef4ced91320674c56b57

Should those be backed up too?

1. Maybe they are related to each task?

~/cvat$ docker volume inspect fefbb2c80c666ea2e82b3217b35b7f1d78675ffda865ef4ced91320674c56b57 
[
    {
        "CreatedAt": "2020-06-03T14:00:49Z",
        "Driver": "local",
        "Labels": null,
        "Mountpoint": "/var/lib/docker/volumes/fefbb2c80c666ea2e82b3217b35b7f1d78675ffda865ef4ced91320674c56b57/_data",
        "Name": "fefbb2c80c666ea2e82b3217b35b7f1d78675ffda865ef4ced91320674c56b57",
        "Options": null,
        "Scope": "local"
    }
]

1. A bit offtopic: all the volumes are pointing to "/var/lib/docker/volumes/... would be enough to backup the whole "/var/lib/docker/volumes/ folder and replace it in case of a loss? The Docker manual is not clear to me yet, but I'm new to the topic so maybe I have to keep on learning.

[kraster010]

@aguadopd did you manage to take the backups? I also don't know which volumes we should backup.

[aguadopd]

@kraster010 No, and I guess we are not going to do it soon since we have a lot of valuable data now :rofl: .
I gues it's safe to update, anyway, as stated in https://github.com/openvinotoolkit/cvat/issues/2114#issuecomment-686397693 .
We have done it before without problem when we were starting with CVAT. Now it's a harder decision maybe.

[azhavoro]

@aguadopd did you manage to take the backups? I also don't know which volumes we should backup.

@kraster010 all volumes associated with CVAT are prefixed with cvat, you should backup *cvat_cvat_data and cvat_cvat_db at least. Also yes, you can backup it by copying folder, but stop all cvat containers before.