Had the following code in a cloud-init config:<\/p>\n
RUNNERTOKEN=$(curl -s -XPOST -H \"authorization: token _REPLACETOKEN_\" https:\/\/api.github.com\/repos\/_REPLACEREPO_\/actions\/runners\/registration-token | jq -r .token)<\/pre>\nDuring cloud-init it gave me a “Failed to Shellify” error in
\/var\/log\/cloud-init.log<\/code>\u00a0and one of the messages just above it was the following:<\/p>\nruncmd.9: {‘RUNNERTOKEN=$(curl -s -XPOST -H “authorization’: ‘token _REPLACETOKEN_” https:\/\/api.github.com\/repos\/_REPLACEREPO_\/actions\/runners\/registration-token\u00a0| jq -r .token)’} is not valid under any of the given schemas<\/p><\/blockquote>\n
Thanks to a StackOverflow post<\/a>\u00a0I realised my error. I was typing in commands under the
runcmd<\/code> section as if it were a Bash script or something like a Dockerfile but obviously that’s not the case. From the docs<\/a> you can see the following:<\/p>\n# runcmd contains a list of either lists or a string\n# each item will be executed in order at rc.local like level with\n# output to the console\n# - runcmd only runs during the first boot\n# - if the item is a list, the items will be properly executed as if\n# passed to execve(3) (with the first arg as the command).\n# - if the item is a string, it will be simply written to the file and\n# will be interpreted by 'sh'<\/pre>\nSo it either expects something along the line of the ENTRYPOINT \u00a0and CMD lines in a Dockerfile – a list of an executable and its arguments – or just a string that it can pass to the shell for execution. All I had to thus do was put the erroneous line in single quotes and the next time cloud-init had no complaints. Yay!<\/p>\n
Also, it’s not so obvious from the docs but you can use shell variables in a cloud-init file as all the commands run in a single shell instance that keeps variables between each command. Consider the following:<\/p>\n
runcmd:\n - 'RUNNERTOKEN=$(curl -s -XPOST -H \"authorization: token _REPLACETOKEN_\" https:\/\/api.github.com\/repos\/_REPLACEREPO_\/actions\/runners\/registration-token | jq -r .token)'\n - RUNNER_ALLOW_RUNASROOT=1 .\/config.sh --url https:\/\/github.com\/_REPLACEREPO_ --token $RUNNERTOKEN --unattended<\/pre>\nI am able to assign a shell variable
RUNNERTOKEN<\/code> in the first line and use it in the second line.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"Had the following code in a cloud-init config: RUNNERTOKEN=$(curl -s -XPOST -H “authorization: token _REPLACETOKEN_” https:\/\/api.github.com\/repos\/_REPLACEREPO_\/actions\/runners\/registration-token | jq -r .token) During cloud-init it gave me a “Failed to Shellify” error in \/var\/log\/cloud-init.log\u00a0and one of the messages just above it was the following: runcmd.9: {‘RUNNERTOKEN=$(curl -s -XPOST -H “authorization’: ‘token _REPLACETOKEN_” https:\/\/api.github.com\/repos\/_REPLACEREPO_\/actions\/runners\/registration-token\u00a0| jq -r .token)’} is … Continue reading Failed to Shellify error in cloud-init<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[887,76],"tags":[],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts\/4762"}],"collection":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/comments?post=4762"}],"version-history":[{"count":0,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts\/4762\/revisions"}],"wp:attachment":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/media?parent=4762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/categories?post=4762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/tags?post=4762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}