Cache pretrained mobilenet_v2 and mobilenet_v3_large models in Docker (pytorch#100302)

Follow the example I did for ONNX in pytorch#96793, this caches the pretrained `mobilenet_v2 model` and `mobilenet_v3_large` used by CI jobs.  I think there might be an issue either with AWS or with the domain download.pytorch.org as the connection to the latter has been failing a lots in the past few days.

Related flaky jobs:
* https://github.com/pytorch/pytorch/actions/runs/4835873487/jobs/8618836446
* https://github.com/pytorch/pytorch/actions/runs/4835783539/jobs/8618404639
* https://github.com/pytorch/pytorch/actions/runs/4835783539/jobs/8618404639

```
Downloading: "https://download.pytorch.org/models/mobilenet_v2-b0353104.pth" to /var/lib/jenkins/.cache/torch/hub/checkpoints/mobilenet_v2-b0353104.pth
Traceback (most recent call last):
  File "/opt/conda/envs/py_3.8/lib/python3.8/urllib/request.py", line 1354, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 1256, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 1302, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 1251, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 1011, in _send_output
    self.send(msg)
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 951, in send
    self.connect()
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 1418, in connect
    super().connect()
  File "/opt/conda/envs/py_3.8/lib/python3.8/http/client.py", line 922, in connect
    self.sock = self._create_connection(
  File "/opt/conda/envs/py_3.8/lib/python3.8/socket.py", line 808, in create_connection
    raise err
  File "/opt/conda/envs/py_3.8/lib/python3.8/socket.py", line 796, in create_connection
    sock.connect(sa)
OSError: [Errno 99] Cannot assign requested address
```
Pull Request resolved: pytorch#100302
Approved by: https://github.com/ZainRizvi

Author: huydhn

.ci/docker/centos-rocm/Dockerfile

@@ -64,9 +64,9 @@ ENV INSTALLED_DB ${DB}
 
 # (optional) Install vision packages like OpenCV and ffmpeg
 ARG VISION
-COPY ./common/install_vision.sh install_vision.sh
+COPY ./common/install_vision.sh ./common/cache_vision_models.sh ./common/common_utils.sh ./
 RUN if [ -n "${VISION}" ]; then bash ./install_vision.sh; fi
-RUN rm install_vision.sh
+RUN rm install_vision.sh cache_vision_models.sh common_utils.sh
 ENV INSTALLED_VISION ${VISION}
 
 # Install rocm

.ci/docker/common/cache_vision_models.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -ex
+
+source "$(dirname "${BASH_SOURCE[0]}")/common_utils.sh"
+
+# Cache the test models at ~/.cache/torch/hub/
+IMPORT_SCRIPT_FILENAME="/tmp/torchvision_import_script.py"
+as_jenkins echo 'import torchvision; torchvision.models.mobilenet_v2(pretrained=True); torchvision.models.mobilenet_v3_large(pretrained=True);' > "${IMPORT_SCRIPT_FILENAME}"
+
+pip_install --pre torch torchvision --index-url https://download.pytorch.org/whl/nightly/cpu
+# Very weird quoting behavior here https://github.com/conda/conda/issues/10972,
+# so echo the command to a file and run the file instead
+conda_run python "${IMPORT_SCRIPT_FILENAME}"
+
+# Cleaning up
+conda_run pip uninstall -y torch torchvision
+rm "${IMPORT_SCRIPT_FILENAME}" || true

.ci/docker/common/install_android.sh

@@ -107,3 +107,6 @@ chgrp -R jenkins /var/lib/jenkins/.gradle
 popd
 
 rm -rf /var/lib/jenkins/.gradle/daemon
+
+# Cache vision models used by the test
+source "$(dirname "${BASH_SOURCE[0]}")/cache_vision_models.sh"

.ci/docker/common/install_vision.sh

@@ -43,3 +43,6 @@ case "$ID" in
     exit 1
     ;;
 esac
+
+# Cache vision models used by the test
+source "$(dirname "${BASH_SOURCE[0]}")/cache_vision_models.sh"

.ci/docker/ubuntu-cuda/Dockerfile

@@ -58,9 +58,9 @@ ENV INSTALLED_DB ${DB}
 
 # (optional) Install vision packages like OpenCV and ffmpeg
 ARG VISION
-COPY ./common/install_vision.sh install_vision.sh
+COPY ./common/install_vision.sh ./common/cache_vision_models.sh ./common/common_utils.sh ./
 RUN if [ -n "${VISION}" ]; then bash ./install_vision.sh; fi
-RUN rm install_vision.sh
+RUN rm install_vision.sh cache_vision_models.sh common_utils.sh
 ENV INSTALLED_VISION ${VISION}
 
 # (optional) Install UCC

.ci/docker/ubuntu-rocm/Dockerfile

@@ -55,9 +55,9 @@ ENV INSTALLED_DB ${DB}
 
 # (optional) Install vision packages like OpenCV and ffmpeg
 ARG VISION
-COPY ./common/install_vision.sh install_vision.sh
+COPY ./common/install_vision.sh ./common/cache_vision_models.sh ./common/common_utils.sh ./
 RUN if [ -n "${VISION}" ]; then bash ./install_vision.sh; fi
-RUN rm install_vision.sh
+RUN rm install_vision.sh cache_vision_models.sh common_utils.sh
 ENV INSTALLED_VISION ${VISION}
 
 # Install rocm

.ci/docker/ubuntu/Dockerfile

@@ -86,20 +86,20 @@ ENV INSTALLED_DB ${DB}
 
 # (optional) Install vision packages like OpenCV and ffmpeg
 ARG VISION
-COPY ./common/install_vision.sh install_vision.sh
+COPY ./common/install_vision.sh ./common/cache_vision_models.sh ./common/common_utils.sh ./
 RUN if [ -n "${VISION}" ]; then bash ./install_vision.sh; fi
-RUN rm install_vision.sh
+RUN rm install_vision.sh cache_vision_models.sh common_utils.sh
 ENV INSTALLED_VISION ${VISION}
 
 # (optional) Install Android NDK
 ARG ANDROID
 ARG ANDROID_NDK
 ARG GRADLE_VERSION
-COPY ./common/install_android.sh install_android.sh
+COPY ./common/install_android.sh ./common/cache_vision_models.sh ./common/common_utils.sh ./
 COPY ./android/AndroidManifest.xml AndroidManifest.xml
 COPY ./android/build.gradle build.gradle
 RUN if [ -n "${ANDROID}" ]; then bash ./install_android.sh; fi
-RUN rm install_android.sh
+RUN rm install_android.sh cache_vision_models.sh common_utils.sh
 RUN rm AndroidManifest.xml
 RUN rm build.gradle
 ENV INSTALLED_ANDROID ${ANDROID}