{"id":39901,"date":"2023-09-18T04:29:03","date_gmt":"2023-09-18T04:29:03","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=39901"},"modified":"2023-09-18T04:31:24","modified_gmt":"2023-09-18T04:31:24","slug":"terraform-tutorials-how-to-comments-in-terraform-code","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/terraform-tutorials-how-to-comments-in-terraform-code\/","title":{"rendered":"Terraform Tutorials: How to comments in terraform code?"},"content":{"rendered":"\n<p>Terraform code supports three different syntaxes for comments:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single-line&nbsp;comments:<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>#<\/code>&nbsp;begins a single-line comment, ending at the end of the line.<\/li>\n\n\n\n<li><code>\/\/<\/code>&nbsp;also begins a single-line comment, as an alternative&nbsp;to&nbsp;<code>#<\/code>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Multi-line comments:<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>\/*<\/code>&nbsp;and&nbsp;<code>*\/<\/code>&nbsp;are start and end delimiters for a comment that might span over multiple lines.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Comments can be placed anywhere in a Terraform configuration file, but they are typically placed at the beginning of a file or before a specific resource. Comments can be used to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Document your Terraform code and explain what it does.<\/li>\n\n\n\n<li>Make your Terraform code more readable and easier to understand.<\/li>\n\n\n\n<li>Disable or uncomment sections of your Terraform code.<\/li>\n<\/ul>\n\n\n\n<p>Here are some examples of comments in Terraform code:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\"># This is a single-line comment.<\/span>\r\n\r\n<span class=\"hljs-comment\">\/\/ This is also a single-line comment.<\/span>\r\n\r\n<span class=\"hljs-comment\">\/*\r\nThis is a multi-line comment.\r\n*\/<\/span>\r\n\r\nvariable <span class=\"hljs-string\">\"instance_type\"<\/span> {\r\n  type = string\r\n  description = <span class=\"hljs-string\">\"The type of EC2 instance to launch.\"<\/span>\r\n  <span class=\"hljs-keyword\">default<\/span> = <span class=\"hljs-string\">\"t2.micro\"<\/span>\r\n}\r\n\r\nresource <span class=\"hljs-string\">\"aws_instance\"<\/span> <span class=\"hljs-string\">\"example\"<\/span> {\r\n  ami = <span class=\"hljs-string\">\"ami-06984b521991bb600\"<\/span>\r\n  instance_type = <span class=\"hljs-keyword\">var<\/span>.instance_type\r\n\r\n  tags = {\r\n    Name = <span class=\"hljs-string\">\"My Example Instance\"<\/span>\r\n  }\r\n}<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>#<\/code>&nbsp;starts a single-line comment, which ends at the end of the line.<\/li>\n\n\n\n<li><code>\/\/<\/code>&nbsp;also starts a single-line comment, as an alternative to&nbsp;<code>#<\/code>.<\/li>\n\n\n\n<li><code>\/*<\/code>&nbsp;starts a multi-line comment, and&nbsp;<code>*\/<\/code>&nbsp;ends it.<\/li>\n<\/ul>\n\n\n\n<p>The single-line comments in the example are used to document the purpose of the <code>variable<\/code> and <code>resource<\/code> blocks. The multi-line comment is used to document the tags that will be applied to the EC2 instance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Terraform code supports three different syntaxes for comments: Comments can be placed anywhere in a Terraform configuration file, but they are typically placed at the beginning of a file or before a specific resource. Comments can be used to: Here are some examples of comments in Terraform code: Explanation: The single-line comments in the example&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_joinchat":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-39901","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/39901","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=39901"}],"version-history":[{"count":2,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/39901\/revisions"}],"predecessor-version":[{"id":39903,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/39901\/revisions\/39903"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=39901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=39901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=39901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}