ubuntu docker container fail to start

[francisyap]

Hi, I getting the following error when start the container using the command, any idea?

unday 08 August 2021  14:19:09 +0000 (0:00:00.050)       0:05:37.573 *********
TASK [splunk_standalone : Setup global HEC] ************************************
fatal: [localhost]: FAILED! => {
    "cache_control": "private",
    "changed": false,
    "connection": "Close",
    "content_length": "130",
    "content_type": "text/xml; charset=UTF-8",
    "date": "Sun, 08 Aug 2021 14:19:11 GMT",
    "elapsed": 0,
    "redirected": false,
    "server": "Splunkd",
    "status": 401,
    "url": "https://127.0.0.1:8089/services/data/inputs/http/http",
    "vary": "Cookie, Authorization",
    "www_authenticate": "Basic realm=\"/splunk\"",
    "x_content_type_options": "nosniff",
    "x_frame_options": "SAMEORIGIN"
}

MSG:

Status code was 401 and not [200]: HTTP Error 401: Unauthorized
PLAY RECAP *********************************************************************
localhost                  : ok=56   changed=2    unreachable=0    failed=1    skipped=58   rescued=0    ignored=0
Sunday 08 August 2021  14:19:11 +0000 (0:00:02.151)       0:05:39.725 *********
===============================================================================
splunk_common : Get Splunk status ------------------------------------- 233.48s
splunk_common : Start Splunk via CLI ----------------------------------- 48.29s
splunk_common : Update Splunk directory owner -------------------------- 20.43s
splunk_common : Wait for splunkd management port ----------------------- 10.10s
splunk_common : Test basic https endpoint ------------------------------- 4.14s
Gathering Facts --------------------------------------------------------- 3.16s
splunk_common : Cleanup Splunk runtime files ---------------------------- 2.49s
splunk_standalone : Setup global HEC ------------------------------------ 2.15s
splunk_common : Check if /sbin/updateetc.sh exists ---------------------- 1.40s
splunk_common : Check for scloud ---------------------------------------- 1.38s
splunk_common : Start Splunk via service -------------------------------- 1.28s
splunk_common : Update /opt/splunk/etc ---------------------------------- 0.90s
splunk_common : Find manifests ------------------------------------------ 0.68s
splunk_common : include_tasks ------------------------------------------- 0.49s
splunk_common : include_tasks ------------------------------------------- 0.46s
splunk_common : Remove user-seed.conf ----------------------------------- 0.43s
splunk_common : Enable splunktcp input ---------------------------------- 0.39s
splunk_common : Check for existing installation ------------------------- 0.38s
splunk_common : Ensure license path ------------------------------------- 0.36s
splunk_common : Create .ui_login ---------------------------------------- 0.30s

# docker run --name splunk-mount -v opt-splunk-etc:/opt/splunk/etc -v opt-splunk-var:/opt/splunk/var -d -p 8000:8000 -e SPLUNK_START_ARGS=--accept-license -e SPLUNK_PASSWORD=password splunk/splunk:latest