From 63b4693e1f5dbc68c6433221ab59323633031faf Mon Sep 17 00:00:00 2001
From: Brian Satorius <brian.p.satorius@jpl.nasa.gov>
Date: Mon, 3 May 2021 20:47:35 -0700
Subject: [PATCH] Reattempt PREVIEW_URL fetch on failure

---
 entrypoint.sh | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/entrypoint.sh b/entrypoint.sh
index d8a19947..2866cb32 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -35,15 +35,23 @@ for endpoint in endpoints:
 END
 }
 
-PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_NAMESPACE-che") # Che 7 OPS configuration where the (actual) namespace is "<username>-che"
-if test -z "$PREVIEW_URL" 
-then
-    PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_NAMESPACE-$CHE_WORKSPACE_ID") # Che 7 UAT configuration fallback where the default namespace is "<username>-<workspaceid>", this will be deprecated
-fi
-if test -z "$PREVIEW_URL" 
-then
-    PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_ID") # Che 6 configuration fallback where the default namespace is the workspace id, this will be deprecated
-fi
+for i in {0..20}
+do 
+    echo "Attempt $i to construct PREVIEW_URL"
+    PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_NAMESPACE-che") # Che 7 OPS configuration where the (actual) namespace is "<username>-che"
+    if test -z "$PREVIEW_URL" 
+    then
+        PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_NAMESPACE-$CHE_WORKSPACE_ID") # Che 7 UAT configuration fallback where the default namespace is "<username>-<workspaceid>", this will be deprecated
+    fi
+    if test -z "$PREVIEW_URL" 
+    then
+        PREVIEW_URL=$(get_workspace_url_prefix "$CHE_WORKSPACE_ID") # Che 6 configuration fallback where the default namespace is the workspace id, this will be deprecated
+    fi
+    if ! test -z "$PREVIEW_URL" # exit loop when it has a preview_url
+    then
+        break
+    fi
+done
 
 # Fix Jupyterlab for Che in `single-host` mode. In `single-host` mode, Che uses URL path prefixes
 # to distinguish workspaces. So for example, `https://<host>/work/space/path/<jupyter endpoints>`.