fix

rebar.config

@@ -31,7 +31,7 @@
 
 {deps, [
     {sync, ".*", {git, "https://github.com/rustyio/sync.git", {branch, "master"}}},
-    {jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.1.2"}}},
+    {jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.1.3"}}},
     {cowboy, ".*", {git, "https://github.com/ninenines/cowboy.git", {tag, "2.10.0"}}},
     {gun, ".*", {git, "https://github.com/ninenines/gun.git", {tag, "2.2.0"}}}
 ]}.

src/docker/docker_commands.erl

@@ -23,11 +23,13 @@ pull_image(Image, Callback) when is_binary(Image), is_function(Callback, 1) ->
 
 -spec check_image_exist(Image :: binary()) -> boolean().
 check_image_exist(Image) when is_binary(Image) ->
-    Url = lists:flatten(io_lib:format("/images/~s/json", [binary_to_list(Image)])),
+    EncodedImage = uri_string:quote(Image),
+    Url = lists:flatten(io_lib:format("/images/~s/json", [binary_to_list(EncodedImage)])),
     case docker_http:request("GET", Url, <<"">>, []) of
-        {ok, 200, _Headers, Resp} ->
-            M = catch jiffy:decode(Resp, [return_maps]),
-            is_map(M) andalso maps:is_key(<<"Id">>, M);
+        {ok, 200, _Headers, _Resp} ->
+            true;
+        {ok, 404, _, _} ->
+            false;
         _ ->
             false
     end.