Fix a problem with known hosts inside git app (cannot clone a repo from github.com) (#1330)

Dockerfile

@@ -56,11 +56,6 @@ RUN apt-get update && \
         curl && \
     curl https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | bash && \
     apt-get --no-install-recommends install -y git-lfs && git lfs install && \
-    if [ -z ${socks_proxy} ]; then \
-        echo export "GIT_SSH_COMMAND=\"ssh -o StrictHostKeyChecking=no -o ConnectTimeout=30\"" >> ${HOME}/.bashrc; \
-    else \
-        echo export "GIT_SSH_COMMAND=\"ssh -o StrictHostKeyChecking=no -o ConnectTimeout=30 -o ProxyCommand='nc -X 5 -x ${socks_proxy} %h %p'\"" >> ${HOME}/.bashrc; \
-    fi && \
     python3 -m pip install --no-cache-dir -U pip==20.0.1 setuptools && \
     ln -fs /usr/share/zoneinfo/${TZ} /etc/localtime && \
     dpkg-reconfigure -f noninteractive tzdata && \
@@ -73,7 +68,12 @@ RUN apt-get update && \
 ENV USER=${USER}
 ENV HOME /home/${USER}
 WORKDIR ${HOME}
-RUN adduser --shell /bin/bash --disabled-password --gecos "" ${USER}
+RUN adduser --shell /bin/bash --disabled-password --gecos "" ${USER} && \
+    if [ -z ${socks_proxy} ]; then \
+        echo export "GIT_SSH_COMMAND=\"ssh -o StrictHostKeyChecking=no -o ConnectTimeout=30\"" >> ${HOME}/.bashrc; \
+    else \
+        echo export "GIT_SSH_COMMAND=\"ssh -o StrictHostKeyChecking=no -o ConnectTimeout=30 -o ProxyCommand='nc -X 5 -x ${socks_proxy} %h %p'\"" >> ${HOME}/.bashrc; \
+    fi
 
 COPY components /tmp/components