Send a Slack message to a channel from a Cloud Build step

This uses https://github.com/technosophos/slack-notify to send Slack messages

cr_buildstep_slack(
  message,
  title = "CloudBuild - $BUILD_ID",
  channel = NULL,
  username = "googleCloudRunnerBot",
  webhook = "$_SLACK_WEBHOOK",
  icon = NULL,
  colour = "#efefef"
)

Arguments

message	The body of the message
title	The title of the message
channel	The channel to send the message to (if omitted, use Slack-configured default)
username	The name of the sender of the message. Does not need to be a "real" username
webhook	The Slack webhook to send to
icon	A URL to an icon (squares between 512px and 2000px)
colour	The RGB colour for message formatting

Details

You will need to set up a Slack webhook first, via this Slack guide on using incoming webhooks.

Once set, the default is to set this webhook to a Build macro called _SLACK_WEBHOOK, or supply it to the webhook argument.

See also

Other Cloud Buildsteps: cr_buildstep_bash(), cr_buildstep_decrypt(), cr_buildstep_df(), cr_buildstep_docker(), cr_buildstep_edit(), cr_buildstep_extract(), cr_buildstep_gcloud(), cr_buildstep_gitsetup(), cr_buildstep_mailgun(), cr_buildstep_nginx_setup(), cr_buildstep_pkgdown(), cr_buildstep_run(), cr_buildstep_r(), cr_buildstep_secret(), cr_buildstep()

Examples

# send a message to googleAuthRverse Slack
webhook <-
 "https://hooks.slack.com/services/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"
cr_buildstep_slack("Hello Slack", webhook = webhook)
#> [[1]]
#> ==cloudRunnerBuildStep==
#> name: technosophos/slack-notify
#> env:
#> - SLACK_WEBHOOK=https://hooks.slack.com/services/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
#> - SLACK_MESSAGE='Hello Slack'
#> - SLACK_TITLE='CloudBuild - $BUILD_ID'
#> - SLACK_COLOR='#efefef'
#> - SLACK_USERNAME='googleCloudRunnerBot'
#> 

if (FALSE) {

bs <- cr_build_yaml(steps = cr_buildstep_slack("Hello Slack"))

cr_build(bs, substitutions = list(`_SLACK_WEBHOOK` = webhook))

}