Update on the issue:
I managed to start a dev OSD (I still have the constant exception on OpenSearch though), but I think we should update the documentation or the default config values of opensearch_dashboards.yml.
Considering that the defaults of the docker image are to set the admin:admin credentials and enable ssl, I think we should match these settings in the OSD defaults:
diff --git a/config/opensearch_dashboards.yml b/config/opensearch_dashboards.yml
index d281b987ee..65aa1df2e4 100644
--- a/config/opensearch_dashboards.yml
+++ b/config/opensearch_dashboards.yml
@@ -25,7 +25,7 @@
#server.name: "your-hostname"
# The URLs of the OpenSearch instances to use for all your queries.
-#opensearch.hosts: ["http://localhost:9200"]
+#opensearch.hosts: ["https://localhost:9200"]
# OpenSearch Dashboards uses an index in OpenSearch to store saved searches, visualizations and
# dashboards. OpenSearch Dashboards creates a new index if the index doesn't already exist.
@@ -48,8 +48,8 @@
# the username and password that the OpenSearch Dashboards server uses to perform maintenance on the OpenSearch Dashboards
# index at startup. Your OpenSearch Dashboards users still need to authenticate with OpenSearch, which
# is proxied through the OpenSearch Dashboards server.
-#opensearch.username: "opensearch_dashboards_system"
-#opensearch.password: "pass"
+#opensearch.username: "admin"
+#opensearch.password: "admin"
# Enables SSL and paths to the PEM-format SSL certificate and SSL key files, respectively.
# These settings enable SSL for outgoing requests from the OpenSearch Dashboards server to the browser.
@@ -68,7 +68,7 @@
#opensearch.ssl.certificateAuthorities: [ "/path/to/your/CA.pem" ]
# To disregard the validity of SSL certificates, change this setting's value to 'none'.
-#opensearch.ssl.verificationMode: full
+#opensearch.ssl.verificationMode: none
What do you think ? I will surely open an issue for this case.