Fix attachments container (#6165)

util/Attachments/Dockerfile

@@ -26,7 +26,6 @@ WORKDIR /source/util/Server
 RUN . /tmp/rid.txt && dotnet restore -r $RID
 
 # Build project
-WORKDIR /source/util/Server
 RUN . /tmp/rid.txt && dotnet publish \
     -c release \
     --no-restore \
@@ -48,7 +47,8 @@ ENV SSL_CERT_DIR=/etc/bitwarden/ca-certificates
 ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false
 EXPOSE 5000
 
-RUN apk add --no-cache curl \
+RUN apk add --no-cache \
+    curl \
     icu-libs \
     shadow \
     && apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/community gosu

util/Attachments/entrypoint.sh

@@ -23,17 +23,17 @@ if [ "$(id -u)" = "0" ]
 then
     # Create user and group
 
-    addgroup -g "$LGID" -S "$GROUPNAME" 2>/dev/null || true
-    adduser -u "$LUID" -G "$GROUPNAME" -S -D -H "$USERNAME" 2>/dev/null || true
-    mkdir -p /home/$USERNAME
-    chown $USERNAME:$GROUPNAME /home/$USERNAME
-
+    groupadd -o -g $LGID $GROUPNAME >/dev/null 2>&1 ||
+    groupmod -o -g $LGID $GROUPNAME >/dev/null 2>&1
+    useradd -o -u $LUID -g $GROUPNAME -s /bin/false $USERNAME >/dev/null 2>&1 ||
+    usermod -o -u $LUID -g $GROUPNAME -s /bin/false $USERNAME >/dev/null 2>&1
+    mkhomedir_helper $USERNAME
 
     # The rest...
-
     chown -R $USERNAME:$GROUPNAME /bitwarden_server
     mkdir -p /etc/bitwarden/core/attachments
     chown -R $USERNAME:$GROUPNAME /etc/bitwarden
+    
     gosu_cmd="gosu $USERNAME:$GROUPNAME"
 else
     gosu_cmd=""