initial git server in a container

3 files changed, 29 insertions, 9 deletions

diff --git a/Dockerfile b/Dockerfile
index 9667c52..a66b59a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,24 +2,27 @@
 FROM alpine:latest
 
 # Install necessary packages
-RUN apk add --no-cache git openssh
+RUN apk add --no-cache git openssh bash
 
 # Create a directory for the Git repositories
-RUN mkdir -p /git-server/repos
+# RUN mkdir -p /git-server/repos
 
 # Create a user for running the Git server with git-shell as the default shell
-RUN addgroup -S git && adduser -S git -G git -s /usr/bin/git-shell && echo "git:*" | chpasswd -e
+RUN addgroup -S git && adduser -S git -G git -s /bin/bash && echo "git:*" | chpasswd -e
 
 # Set the working directory
-WORKDIR /git-server
+#WORKDIR /git-server
 
 # Create SSH directory, authorized_keys file, and set permissions
 RUN mkdir -p /home/git/.ssh \
     && chmod 700 /home/git/.ssh \
-    && chown -R git:git /home/git/.ssh
+    && chown -R git:git /home/git/.ssh \
+    && chown -R git:git /home/git
 
 # Add your SSH public key and restrict to git-shell
-RUN echo 'command="/usr/local/bin/git-init-repo.sh %r",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPQgoZvm5U8SKkjZr03YcGdbMDvx2DxuSfXBYjyBJzrE' > /home/git/.ssh/authorized_keys \
+
+# RUN echo 'command="/usr/local/bin/git-init-repo.sh %r",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBGBUUE8jxGg2bUaPN0+iJY7DLcf1C4E6/5j6AjBN/GTM8IQ0UJzcWj/gapj/tiVrG/iT5IEMiDy3pnzZQcbIugM=' > /home/git/.ssh/authorized_keys \
+RUN echo 'command="/usr/local/bin/git-wrapper",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBGBUUE8jxGg2bUaPN0+iJY7DLcf1C4E6/5j6AjBN/GTM8IQ0UJzcWj/gapj/tiVrG/iT5IEMiDy3pnzZQcbIugM=' > /home/git/.ssh/authorized_keys \
     && chmod 600 /home/git/.ssh/authorized_keys \
     && chown -R git:git /home/git/.ssh
 
@@ -33,8 +36,8 @@ run echo "Connection successful!" > /etc/motd
 # Expose SSH port
 EXPOSE 22
 
-COPY init-repo.sh /usr/local/bin/git-init-repo.sh 
-RUN chmod +x /usr/local/bin/git-init-repo.sh
+COPY git-wrapper.sh /usr/local/bin/git-wrapper 
+RUN chmod +x /usr/local/bin/git-wrapper
 
 # Copy the entrypoint script
 COPY entrypoint.sh /entrypoint.sh
@@ -43,4 +46,4 @@ COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 
 # Set the entrypoint
-ENTRYPOINT ["/bin/sh","/entrypoint.sh"]
+ENTRYPOINT ["/entrypoint.sh"]
diff --git a/entrypoint.sh b/entrypoint.sh
index 77ae84d..5a4bd74 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -10,3 +10,4 @@ fi
 
 # Start the SSH daemon
 /usr/sbin/sshd -D -e 2>&1
+
diff --git a/git-wrapper.sh b/git-wrapper.sh
new file mode 100644
index 0000000..21d1b23
--- /dev/null
+++ b/git-wrapper.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+REPO_NAME=$(echo "$SSH_ORIGINAL_COMMAND" | awk '{print $2}' | tr -d "'")
+
+init_repo() {
+    echo "creating repo"
+    mkdir -p ${REPO_NAME}
+    cd ${REPO_NAME} || exit
+    git init --bare --initial-branch=main
+}
+
+if [ ! -d "$REPO_NAME" ]; then
+    captured=$(init_repo)
+fi
+
+exec git-shell -c "$SSH_ORIGINAL_COMMAND"