working script

Dockerfile

@@ -1,6 +1,9 @@
 FROM alpine:3.14
-RUN apk add --no-cache git openssh
-RUN mkdir -p /var/git-cloner/{repo,auth}
+RUN apk add --no-cache git
+RUN adduser -D git-cloner
+RUN mkdir -p /var/git-cloner/repo \
+ && chown -R git-cloner:git-cloner /var/git-cloner
+USER git-cloner
 WORKDIR /var/git-cloner
 COPY ./run.sh ./
 ENTRYPOINT ["sh", "-c", "/var/git-cloner/run.sh"]

README.md

@@ -2,8 +2,7 @@
 
 # Environment
 - `INTERVAL`: interval to pull the repo, seconds
-- `URL`: git URL, in ssh format
+- `URL`: git URL
 
 # Mounts
 - `/var/git-cloner/repo`: the cloned repo
-- `/var/git-cloner/auth`: directory containing ssh key

run.sh

@@ -1,20 +1,19 @@
 set -euxo pipefail
 
-KEYFILE="$(find /var/git-cloner/auth -type f | grep -v 'pub$')"
-ls -alh "$KEYFILE"
-whoami
-export GIT_SSH_COMMAND="ssh -i $KEYFILE -o IdentitiesOnly=yes"
-
 REPOPATH="/var/git-cloner/repo"
-
+git config --global --add safe.directory "$REPOPATH"
 cd "$REPOPATH"
 
 while true
 do
-    if [ -d "repo/.git" ]; then
+    # pull or clone
+    if [ -d ".git" ]; then
         git pull
     else
-        git clone "$URL" aa
+        git clone "$URL" .
     fi
-    sleep "$INTERVAL"
+
+    # allow sleep to be interrupted
+    sleep "$INTERVAL" &
+    wait $!
 done