[Fix] Update mmcv installation in dockerfile

[Junjun2016]

Motivation

Update mmcv installation in dockerfile

Modification

RUN pip install mmcv-full==latest+torch1.6.0+cu101 -f https://download.openmmlab.com/mmcv/dist/index.html
-->
RUN pip install mmcv-full==${MMCV} -f https://download.openmmlab.com/mmcv/dist/cu${CUDA//./}/torch${PYTORCH}/index.html

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repos?
No

[codecov]

Codecov Report

Merging #860 (f1056b4) into master (d35fbbd) will increase coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #860      +/-   ##
==========================================
+ Coverage   88.90%   89.02%   +0.12%     
==========================================
  Files         110      111       +1     
  Lines        5928     6043     +115     
  Branches      950      969      +19     
==========================================
+ Hits         5270     5380     +110     
- Misses        465      467       +2     
- Partials      193      196       +3     

Flag	Coverage Δ
unittests	89.02% <ø> (+0.14%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmseg/datasets/builder.py	87.01% <0.00%> (-2.47%)	⬇️
mmseg/datasets/dataset_wrappers.py	97.67% <0.00%> (-2.33%)	⬇️
mmseg/core/evaluation/metrics.py	90.42% <0.00%> (-0.20%)	⬇️
mmseg/datasets/custom.py	92.09% <0.00%> (-0.05%)	⬇️
mmseg/models/decode_heads/__init__.py	100.00% <0.00%> (ø)
mmseg/models/decode_heads/isa_head.py	96.00% <0.00%> (ø)
mmseg/datasets/ade.py	93.93% <0.00%> (+3.03%)	⬆️

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[VVsssssk]

Hello.When I try to build docker image
/docker$ docker build -t mmseg .
I get a error
Error log:
Step 10/16 : RUN conda clean --all
---> Using cache
---> 025c6545676b
Step 11/16 : RUN ["/bin/bash", "-c", "pip install mmcv-full==${MMCV} -f https://download.openmmlab.com/mmcv/dist/cu${CUDA//./}/torch${PYTORCH}/index.html"]
---> Running in 24b4e9123299
Looking in links: https://download.openmmlab.com/mmcv/dist/cu/torch/index.html
ERROR: Could not find a version that satisfies the requirement mmcv-full== (from versions: 1.0rc0, 1.0rc2, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.3.0, 1.3.1, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11, 1.3.12)
ERROR: No matching distribution found for mmcv-full==
The command '/bin/bash -c pip install mmcv-full==${MMCV} -f https://download.openmmlab.com/mmcv/dist/cu${CUDA//./}/torch${PYTORCH}/index.html' returned a non-zero code: 1

And we can see "Looking in links: https://download.openmmlab.com/mmcv/dist/cu/torch/index.html",script cannt get args ${MMCV},${CUDA//./},${PYTORCH},beacause args workspace.You can see https://yeasy.gitbook.io/docker_practice/image/dockerfile/arg

We can fix dockerfile to resolve problem:

ARG PYTORCH="1.6.0"
ARG CUDA="10.1"
ARG CUDNN="7"

FROM pytorch/pytorch:${PYTORCH}-cuda${CUDA}-cudnn${CUDNN}-devel

ARG PYTORCH="1.6.0"
ARG CUDA="10.1"
ARG CUDNN="7"
ARG MMCV="1.3.12"

[Junjun2016]

Hi @VVsssssk
Please test it again.