Slack alert only shows text messages but images are not coming

Slack alert only shows text messages but images are not coming

How to make grafana send screenshot to slack also.

i have tried all suggestions on these urls but still no success


Here are the logs from grafana container

t=2020-09-10T13:27:38+0000 lvl=info msg=Rendering logger=rendering renderer=plugin path="d-solo/RgE5LuvMz/docker-monitoring?orgId=1&panelId=2"
t=2020-09-10T13:27:42+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=1 notification=Slack-Notification
t=2020-09-10T13:27:43+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack
t=2020-09-10T13:28:07+0000 lvl=info msg=Rendering logger=rendering renderer=plugin path="d-solo/RgE5LuvMz/docker-monitoring?orgId=1&panelId=1"
t=2020-09-10T13:28:11+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=2 notification=Slack-Notification
t=2020-09-10T13:28:11+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack
t=2020-09-10T13:29:38+0000 lvl=info msg=Rendering logger=rendering renderer=plugin path="d-solo/RgE5LuvMz/docker-monitoring?orgId=1&panelId=2"
t=2020-09-10T13:29:44+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=1 notification=Slack-Notification
t=2020-09-10T13:29:44+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack
t=2020-09-10T13:41:06+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=0 notification=Slack-Notification
t=2020-09-10T13:41:07+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack
t=2020-09-10T13:41:28+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=0 notification=Slack-Notification
t=2020-09-10T13:41:29+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack
t=2020-09-10T14:27:28+0000 lvl=info msg="Executing slack notification" logger=alerting.notifier.slack ruleId=0 notification=Slack-Notification
t=2020-09-10T14:27:29+0000 lvl=info msg="Uploading to slack via file.upload API" logger=alerting.notifier.slack

here are slack notification on grafana

Please feel free to ask anything to this issue.
Thanks & regards