fix: non-root user could not launch compose

We want to propagate user's current ssh config

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

bin/compose

@@ -352,16 +352,22 @@ mk_docker_run_options() {
     ##
 
     ## CHARM_STORE
-    CHARM_STORE=${CHARM_STORE:-/srv/charm-store}
+    if [ "$UID" == 0 ]; then
+        CHARM_STORE=${CHARM_STORE:-/srv/charm-store}
+    else
+        CHARM_STORE=${CHARM_STORE:-$HOME/.charm-store}
+    fi
+    [ -e "$CHARM_STORE" ] || mkdir -p "$CHARM_STORE" || exit 1
     [ -L "$CHARM_STORE" ] && {
         CHARM_STORE=$(readlink -f "$CHARM_STORE") || exit 1
     }
+
     docker_run_opts+=(
         "-v" "$CHARM_STORE:/srv/charm-store:ro"
         "-e" "CHARM_STORE=/srv/charm-store"
         "-e" "HOST_CHARM_STORE=$CHARM_STORE"
     )
-    relink_subdirs /srv/charm-store/*
+    relink_subdirs "$CHARM_STORE"/*
 
     ## DEFAULT_COMPOSE_FILE
     if [ "${DEFAULT_COMPOSE_FILE+x}" ]; then
@@ -414,8 +420,8 @@ mk_docker_run_options() {
 
     ## SSH config
     docker_run_opts+=(
-        "-v" "/root/.ssh:/root/.ssh:ro"
-        "-v" "/etc/ssh:/etc/ssh"
+        "-v" "$HOME/.ssh:/root/.ssh:ro"
+        "-v" "/etc/ssh:/etc/ssh:ro"
     )
 
     COMPOSE_LAUNCHER_BIN=$(readlink -f "${BASH_SOURCE[0]}")