fix undefined IOError in retry

Author: tanmaykm

src/helpers.jl

@@ -144,7 +144,7 @@ function fetch_misc_apis_versions(ctx::KuberContext; override=nothing, verbose::
     vers = @repeat max_tries try
         getAPIVersions(ApisApi(ctx.client))
     catch e
-        @retry if isa(e, IOError)
+        @retry if isa(e, Base.IOError)
             @debug("Retrying getAPIVersions")
             sleep(2)
         end
@@ -188,7 +188,7 @@ function fetch_core_version(ctx::KuberContext; override=nothing, verbose::Bool=f
     api_vers = @repeat max_tries try
         getCoreAPIVersions(CoreApi(ctx.client))
     catch e
-        @retry if isa(e, IOError)
+        @retry if isa(e, Base.IOError)
             @debug("Retrying getCoreAPIVersions")
             sleep(2)
         end
@@ -263,7 +263,7 @@ function retry_on_error(f::Function; max_tries=1)
     @repeat max_tries try
         return f()
     catch e
-        @retry if isa(e, IOError)
+        @retry if isa(e, Base.IOError)
             @debug("Retrying Kubernetes API call ...")
             sleep(2)
         end