add readonly root filesystem #4161

Job	Run time
output workflow variables	8s
workspace_name / Generate the terraform workspace name to use	1s
test node dependencies	0s
update documentation	0s
build node dependencies	0s
lint terraform code / lint-terraform (environment)	19s
lint terraform code / lint-terraform (account)	18s
build, test, scan and push / docker_build_scan_push (front, app, true, true, true, dist-web)	19s
build, test, scan and push / docker_build_scan_push (front, web, false, false, false, dist-web)	14s
build, test, scan and push / docker_build_scan_push (api, app, true, true, true)	25s
build, test, scan and push / docker_build_scan_push (api, web, false, false, false)	19s
build, test, scan and push / docker_build_scan_push (admin, app, false, true, false)	16s
build, test, scan and push / docker_build_scan_push (stats_upload, lambda, false, true, false)	18s
terraform apply shared development / terraform_workflow	1m 39s
terraform plan preproduction environment / terraform_workflow	35s
upload to code coverage / code_coverage	8s
terraform apply environment / terraform_workflow	1m 6s
ecr scan results / ecr-scan-results	14s
seed dynamodb / terraform_workflow	25s
run behat tests against environment / build-web	1m 34s
notify of result / send-slack-notification	13s
end of workflow	1s
	8m 32s

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