{"id":49192,"date":"2022-11-25T23:20:32","date_gmt":"2024-01-18T14:42:09","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8eterraform-v0-12%e4%b8%adhcl%e6%8f%8f%e8%bf%b0%e5%8f%91%e7%94%9f%e7%9a%84%e5%8f%98%e5%8c%96%e3%80%82\/"},"modified":"2024-04-29T02:30:20","modified_gmt":"2024-04-28T18:30:20","slug":"%e5%85%b3%e4%ba%8eterraform-v0-12%e4%b8%adhcl%e6%8f%8f%e8%bf%b0%e5%8f%91%e7%94%9f%e7%9a%84%e5%8f%98%e5%8c%96%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8eterraform-v0-12%e4%b8%adhcl%e6%8f%8f%e8%bf%b0%e5%8f%91%e7%94%9f%e7%9a%84%e5%8f%98%e5%8c%96%e3%80%82\/","title":{"rendered":"\u5173\u4e8eTerraform v0.12\u4e2dHCL\u63cf\u8ff0\u53d1\u751f\u7684\u53d8\u5316"},"content":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u662f\u5728\u7b2c6\u6b21\u540d\u53e4\u5c4b\u5e74\u8f7bWeb\u5de5\u7a0b\u5e08\u4ea4\u6d41\u4f1a\u4e0a\u6839\u636e\u6f14\u8bb2\u5185\u5bb9\u8fdb\u884c\u4fee\u8ba2\u548c\u8865\u5145\u800c\u6210\u7684\u3002\u6211\u5c55\u793a\u4e86Terraform v0.11\u548cv0.12\u4e2d\u8d44\u6e90\u63cf\u8ff0\u7684\u4e0d\u540c\u4e4b\u5904\u3002<\/p>\n<hr \/>\n<h1>\u4f7f\u7528Terraform\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u3002<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30a4\u30f3\u30d5\u30e9\u306e\u30b3\u30fc\u30c9\u5316<\/ul>\n<\/li>\n<\/ul>\n<p>\u4f8b\u3048\u3070AWS\u30b3\u30f3\u30bd\u30fc\u30eb\u3092\u4f7f\u308f\u305a\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3067\u304d\u308b<\/p>\n<p>JSON\u4e92\u63db\u306eHCL\u3068\u3044\u3046\u8a18\u6cd5\u3067\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0<\/p>\n<p>HCL\uff08HashiCorp Configuration Language\uff09<br \/>\n\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306f\u306a\u3044\u3002\u8a2d\u5b9a\u3068\u304b\u3092\u8a18\u8ff0\u3059\u308b\u305f\u3081\u306e\u3082\u306e<\/p>\n<p>AWS,Azure,GCP\u3068\u3044\u3063\u305f\u69d8\u3005\u306a\u30af\u30e9\u30a6\u30c9\u30a4\u30f3\u30d5\u30e9\u306b\u5bfe\u5fdc<br \/>\n\u30a4\u30f3\u30d5\u30e9\u306e\u72b6\u614b\u3092\u7ba1\u7406\u3067\u304d\u308b(S3\u3068\u304b\u306b\u4fdd\u5b58\u3067\u304d\u308b)<\/p>\n<hr \/>\n<h1>\u4e3a\u4ec0\u4e48\u9009\u62e9\u4f7f\u7528Terraform\uff1f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">AWS\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u306e\u4f5c\u696d\u306b\u9650\u754c\u3092\u611f\u3058\u305f\u304b\u3089<\/ul>\n<\/li>\n<\/ul>\n<p>\u4f8b\u3048\u3070VPC\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u306e\u8a2d\u5b9a<\/p>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f7f\u3046\u305f\u3081\u306b\u5fc5\u8981\u306a\u8a2d\u5b9a\u306a\u306e\u3067\u3001\u4f55\u5ea6\u3084\u3063\u3066\u3082\u4e00\u56de\u3067\u51fa\u6765\u308b\u6c17\u304c\u3057\u306a\u3044<\/p>\n<p>\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3068\u672c\u756a\u74b0\u5883\u306e\u5dee\u7570\u3092\u30bc\u30ed\u306b\u3057\u305f\u3044\u304b\u3089<\/p>\n<p>v0.10\u304b\u3089workspace\u3068\u3044\u3046\u6a5f\u80fd\u304c\u3042\u308a\u3001\u5358\u4e00\u306e\uff54\uff46\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u7570\u306a\u308b\u74b0\u5883\u306e\u30a4\u30f3\u30d5\u30e9\u3092\u69cb\u7bc9\u51fa\u6765\u308b<\/p>\n<p>\u30a2\u30e9\u30fc\u30c8\u7b49\u306e\u8a2d\u5b9a\u6f0f\u308c\u3092\u306a\u304f\u3057\u305f\u3044\u304b\u3089<\/p>\n<p>1\u53f0\u76ee\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u3042\u308bcloudwatch\u306e\u8a2d\u5b9a\u304c2\u53f0\u76ee\u306b\u306f\u306a\u3044<\/p>\n<hr \/>\n<h1>\u4f7f\u7528Terraform\u540e\u611f\u5230\u6ee1\u610f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30a4\u30f3\u30d5\u30e9\u3092\u69cb\u6210\u3092\u30b3\u30fc\u30c9\u7ba1\u7406\u51fa\u6765\u308b\u306e\u3068\u3001\u73fe\u5728\u306e\u30a4\u30f3\u30d5\u30e9\u72b6\u614b\u3092S3\u7b49\u306b\u4fdd\u5b58\u3067\u304d\u308b\u306e\u3067\u3001\u5b89\u5fc3\u51fa\u6765\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u69cb\u7bc9\u3057\u305f\u3044\u3068\u304d\u306f\u4e00\u56deTerraform\u3067\u4f5c\u308b\u3068\u5c55\u958b\u3057\u3084\u3059\u3044<\/ul>\n<hr \/>\n<h1>\u4f7f\u7528Terraform\u7684\u56f0\u5883\u4e4b\u82e6<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u65e2\u5b58\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u7ba1\u7406\u3067\u304d\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>\u3044\u3064\u306e\u9593\u306b\u304b\u30b3\u30fc\u30c9\u306b\u306a\u3044\u30ea\u30bd\u30fc\u30b9\u304c\u4f5c\u3089\u308c\u3066\u308b<br \/>\n\u7dca\u6025\u907f\u96e3\u7684\u306b\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u5909\u66f4\u3057\u305f\u5185\u5bb9\u304cTerraform\u306e\u5b9f\u884c\u3067\u3082\u3068\u306b\u623b\u308b<\/p>\n<p>\u8907\u96d1\u306a\u8a18\u6cd5<\/p>\n<p>\u8907\u96d1\u306a\u3053\u3068\u3092\u3084\u308d\u3046\u3068\u3059\u308b\u3068\u5927\u5909<\/p>\n<p>repl\u74b0\u5883\u304c\u4f7f\u3044\u306b\u304f\u3044<\/p>\n<p>output\u5468\u308a\u3084\u3001\u65e2\u5b58\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u4ed6\u306e\u30ea\u30bd\u30fc\u30b9\u3067\u4f7f\u3046\u3068\u304d\u306e\u9069\u5207\u306a\u5f0f\u8868\u73fe\u3092\u898b\u3064\u3051\u308b\u306e\u306b\u96e3\u3057\u3044\u3068\u304d\u304c\u3042\u308b<\/p>\n<h1>Terraform 0.12 \u4e2d HCL \u7684\u6539\u8fdb\u4e4b\u5904\u662f\u4ec0\u4e48\uff1f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">First-ClassExpressions<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Expressions with Lists and Maps<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">For expressions<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Dynamic blocks<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Generalized Splat Operator<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Conditional Operator Improvements<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rich Value Types<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Reliable JSON Syntax<\/ul>\n<hr \/>\n<h1>\u5b89\u88c5<\/h1>\n<p>\u7531\u4e8e\u5c1a\u672a\u6b63\u5f0f\u53d1\u5e03\uff0c\u8bf7\u4ece\u4e0b\u65b9\u94fe\u63a5\u4e0b\u8f7d\u5e76\u5b89\u88c5\u3002<\/p>\n<p>\u5728\u672c\u6587\u64b0\u5199\u65f6\uff0c\u6700\u65b0\u7248\u672c\u4e3av0.12.0-alpha4\uff0c\u6240\u4ee5\u6211\u5c1d\u8bd5\u4e86v0.12.0-alpha4\u3002<br \/>\n\u5982\u679c\u6709\u4e0e\u63d0\u4f9b\u8005\u76f8\u5173\u7684\u9519\u8bef\uff0c\u8bf7\u5c06\u63d0\u4f9b\u8005\u6587\u4ef6\u590d\u5236\u5230.terraform\/plugins\/darwin_amd64\/\u4e2d\u3002<\/p>\n<hr \/>\n<h1>\u4e0d\u5728\u6e05\u5355\u4e2d\u7684\u66f4\u6539\u3002<\/h1>\n<p>\u4ece0.12\u7248\u672c\u5f00\u59cb\uff0c\u73b0\u5728\u53ef\u4ee5\u901a\u8fc7terraform console\u83b7\u53d6\u672c\u5730\u53d8\u91cf\u3002\u4ee5\u524d\u662f\u8fd9\u6837\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code>locals {\r\n  region = \"ap-northeast-1\"\r\n}\r\n<\/code><\/pre>\n<p>\u5b9a\u4e49\u4e86\u50cf\u4e0a\u9762\u90a3\u6837\u7684\u53d8\u91cf\uff0c\u6267\u884cterraform console\u5c06\u4f1a\u53d1\u751f\u4ec0\u4e48\u3002<\/p>\n<pre class=\"post-pre\"><code>$ terraform console\r\n&gt; local.region\r\nunknown values referenced, can't compute value\r\n<\/code><\/pre>\n<p>\u5c3d\u7ba1\u51fa\u73b0\u4e86\u8fd9\u6837\u7684\u9519\u8bef\uff0c\u4ece0.12\u5f00\u59cb<\/p>\n<pre class=\"post-pre\"><code>$ terraform console\r\n&gt; local.region\r\nap-northeast-1\r\n<\/code><\/pre>\n<p>\u53ea\u8981\u6309\u7167\u4e0a\u8ff0\u7684\u65b9\u5f0f\uff0c\u4f1a\u8fd4\u56de\u6b63\u786e\u7684\u7ed3\u679c\u3002\u7136\u800c\uff0c\u5f53\u5c1d\u8bd5\u4f7f\u7528 terraform console \u83b7\u5f97\u5df2\u521b\u5efa\u8d44\u6e90\u65f6\uff0c<\/p>\n<pre class=\"post-pre\"><code>$ terraform console\r\n&gt; aws_security_group.this.id\r\n\r\n&gt;\r\nError: Result depends on values that cannot be determined until after \"terraform apply\".\r\n<\/code><\/pre>\n<p>\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u7531\u4e8e\u65e0\u6cd5\u627e\u5230\u8fd9\u79cd\u53d8\u5316\u7684\u8bf4\u660e\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u73af\u5883\u4f9d\u8d56\u95ee\u9898\u6216\u8005\u662f\u7531\u4e8e\u5c1d\u8bd5\u7684Terraform v0.12.0-alpha4\u7248\u672c\u5f15\u8d77\u7684\u9519\u8bef\u3002<br \/>\n\u9519\u8bef\u7684\u539f\u56e0\u53ef\u80fd\u662f\u7531\u4e8e\u73af\u5883\u4f9d\u8d56\u95ee\u9898\u6216\u8005\u662f\u7531\u4e8e\u5c1d\u8bd5\u7684Terraform v0.12.0-alpha4\u7248\u672c\u5f15\u8d77\u7684\u3002<\/p>\n<hr \/>\n<h1>\u4e00\u6d41\u8868\u8fbe<\/h1>\n<p>\u4e0d\u518d\u9700\u8981\u7528\u53cc\u5f15\u53f7\u5c06\u8868\u8fbe\u5f0f\u62ec\u8d77\u6765\u3002<\/p>\n<pre class=\"post-pre\"><code>\"${var.foo}\"\r\n<\/code><\/pre>\n<p>\u8bf7\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7528\u4e2d\u6587\u8fdb\u884c\u672c\u5730\u5316\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\n\u2193<\/p>\n<pre class=\"post-pre\"><code>var.foo\r\n<\/code><\/pre>\n<p>\u5728\u5b89\u88c5\u4e86\u7248\u672c\u4e3a0.12\u7684Terraform\u7684\u60c5\u51b5\u4e0b\uff0c\u6267\u884c\u547d\u4ee4terraform 0.12upgrade\u4f1a\u5c06\u6240\u67090.11\u7248\u672c\u7684hcl\u6587\u4ef6\u5185\u5bb9\u66ff\u6362\u4e3a\u65b0\u7684\u63cf\u8ff0\u3002<\/p>\n<hr \/>\n<h1>\u5217\u8868\u548c\u6620\u5c04\u7684\u8868\u8fbe\u65b9\u5f0f<\/h1>\n<p>\u73b0\u5728\u53ef\u4ee5\u76f4\u63a5\u5728\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\u5217\u8868\u548c\u6620\u5c04\u3002<\/p>\n<pre class=\"post-pre\"><code>ids = [\"${local.sg_1}\", \"${local.sg_2}\"]\r\n<\/code><\/pre>\n<p>\u8bf7\u7528\u4e2d\u6587\u672c\u5730\u65b9\u5f0f\u6539\u5199\u4ee5\u4e0b\u53e5\u5b50\uff0c\u53ea\u9700\u8981\u4e00\u79cd\u7248\u672c\uff1a<br \/>\n\u2193<\/p>\n<pre class=\"post-pre\"><code>ids = ids\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d\uff08\u5177\u6709\u4e00\u6d41\u8868\u8fbe\u5f0f\u548c\u5217\u8868\u4e0e\u6620\u5c04\u7684\u8868\u8fbe\u5f0f\uff09<\/h1>\n<pre class=\"post-pre\"><code>locals {\r\n  sg_a = \"sg-xxxxxxxx\"\r\n  sg_b = \"sg-zzzzzzzz\"\r\n  sg_c = \"sg-yyyyyyyy\"\r\n  ami = \"ami-016ad6443b4a3d960\"\r\n  instance_type = \"t3.micro\"\r\n}\r\n\r\nresource \"aws_instance\" \"example\" {\r\n  ami           = \"${local.ami}\"\r\n  instance_type = \"${local.instance_type}\"\r\n\r\n  vpc_security_group_ids = [\"${local.sg_a}\", \"${local.sg_b}\", \"${local.sg_c}\"]\r\n}\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u4e4b\u540e\uff08\u7b2c\u4e00\u7c7b\u8868\u8fbe\u5f0f\u548c\u5217\u8868\u548c\u6620\u5c04\u4e2d\u7684\u8868\u8fbe\u5f0f\uff09\uff0c<\/h1>\n<p>\u56e0\u4e3a\u4e0d\u518d\u9700\u8981\u53cc\u5f15\u53f7\u6765\u8868\u793a\u5f0f\u7684\u8868\u8fbe\uff0c\u800c\u4e14List\u7684\u5b9a\u4e49\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5728\u8868\u8fbe\u5f0f\u4e2d\u4f7f\u7528\uff0c\u6240\u4ee5\u6211\u8ba4\u4e3a\u5b83\u7684\u5916\u89c2\u53d8\u5f97\u975e\u5e38\u6e05\u6670\u7b80\u6d01\u3002<\/p>\n<pre class=\"post-pre\"><code>locals {\r\n  vpc_security_group_ids = [\"sg-xxxxxxxx\",\"sg-zzzzzzzz\",\"sg-yyyyyyyy\"]\r\n  ami = \"ami-016ad6443b4a3d960\"\r\n  instance_type = \"t3.micro\"\r\n}\r\n\r\nresource \"aws_instance\" \"example\" {\r\n  ami           = local.ami\r\n  instance_type = local.instance_type\r\n\r\n  vpc_security_group_ids = local.vpc_security_group_ids\r\n}\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5173\u4e8e\u8868\u8fbe\u65b9\u5f0f<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">For\u6587\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u3001List\u3084Map\u306e\u5185\u5bb9\u3092\u53c2\u7167\u3059\u308b\u306e\u304c\u7c21\u5358\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">ourput\u306e\u6574\u5f62\u306b\u3082\u4f7f\u3048\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5f85\u671b\u306e\u6a5f\u80fd\u3060\u3051\u3069\u3001resource\u306e\u8907\u6570\u5b9a\u7fa9\u306b\u306f\u307e\u3060\u4f7f\u3048\u306a\u3055\u305d\u3046<\/ul>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d\uff08\u7528\u4e8e\u8868\u8fbe\u5f0f\uff09<\/h1>\n<pre class=\"post-pre\"><code>resource \"aws_instance\" \"this\" {\r\n  count = 3\r\n  ami           = \"${local.ami}\"\r\n  instance_type = \"${local.instance_type}\"\r\n  availability_zone = \"${format(\"%s%s\", \"${local.region}\", \"${local.azs[count.index]}\")}\"\r\n  associate_public_ip_address = true\r\n  vpc_security_group_ids = [\"${local.sg_a}\", \"${local.sg_b}\", \"${local.sg_c}\"]\r\n  subnet_id = \"${local.subnets[count.index]}\"\r\n\r\n  tags = {\r\n    Name  = \"${format(\"terraform-0.11-for-demo-%d\", \"${count.index}\")}\"\r\n  }\r\n  credit_specification {\r\n    cpu_credits = \"unlimited\"\r\n  }\r\n}\r\n\r\noutput \"instance_private_ip_addresses\" {\r\n  value = \"${aws_instance.this.*.private_ip}\"\r\n}\r\n&gt;\r\nOutputs:\r\n\r\ninstance_private_ip_addresses = [\r\n    10.2.0.22,\r\n    10.2.4.162,\r\n    10.2.9.38\r\n]\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u7248\u672c\u4e4b\u540e\uff0c\u6709\u4e86For\u8868\u8fbe\u5f0f\u3002<\/h1>\n<p>\u73b0\u5728\u7684\u7248\u672c\u53ea\u80fd\u663e\u793a\u5173\u4e8eList\u7c7b\u578b\u7684\u63cf\u8ff0\uff0c\u4f46\u662f\u636e\u5199\u7740\u4e5f\u53ef\u4ee5\u5c06\u5176\u63cf\u8ff0\u4e3amap\u7c7b\u578b\u3002\u7136\u800c\uff0c\u7531\u4e8e\u76ee\u524d\u51fa\u73b0\u9519\u8bef\uff0c\u6211\u4eec\u53ea\u653e\u7f6e\u4e86\u5173\u4e8eList\u7c7b\u578b\u7684\u63cf\u8ff0\u3002<\/p>\n<pre class=\"post-pre\"><code>resource \"aws_instance\" \"this\" {\r\n  count = 3\r\n  ami           = local.ami\r\n  instance_type = local.instance_type\r\n  availability_zone = format(\"%s%s\", local.region, local.azs[count.index])\r\n  associate_public_ip_address = true\r\n  vpc_security_group_ids = local.vpc_security_group_ids\r\n  subnet_id = local.subnets[count.index]\r\n\r\n  tags = {\r\n    Name  = format(\"terraform-0.12-for-demo-%d\", count.index)\r\n  }\r\n  credit_specification {\r\n    cpu_credits = \"unlimited\"\r\n  }\r\n}\r\n\r\noutput \"instance_private_ip_addresses\" {\r\n  value = [\r\n    for instance in aws_instance.this:\r\n    instance.private_ip\r\n  ]\r\n}\r\n\r\n&gt;\r\nOutputs:\r\n\r\ninstance_private_ip_addresses = [\r\n  \"10.2.1.79\",\r\n  \"10.2.7.42\",\r\n  \"10.2.11.106\",\r\n]\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u52a8\u6001\u533a\u5757<\/h1>\n<p>\u30fb\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u8868\u793a\u53cd\u590d\u63cf\u8ff0\u7684\u5757\uff0c\u5982\u6807\u7b7e\u7b49\u3002<br \/>\n\u30fb\u53ef\u4ee5\u7528\u4e8e\u91cd\u590d\u63cf\u8ff0\u7684AutoScaling\u6807\u7b7e\u548cSecurityGroup\u5165\u53e3\u8bbe\u7f6e\u3002<\/p>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d\uff08\u4f7f\u7528\u8868\u8fbe\u5f0f\uff09<\/h1>\n<pre class=\"post-pre\"><code>resource \"aws_autoscaling_group\" \"example\" {\r\n  # ...\r\n\r\n  tag {\r\n    key                 = \"Name\"\r\n    value               = \"example-asg-name\"\r\n    propagate_at_launch = false\r\n  }\r\n\r\n  tag {\r\n    key                 = \"Component\"\r\n    value               = \"user-service\"\r\n    propagate_at_launch = true\r\n  }\r\n\r\n  tag {\r\n    key                 = \"Environment\"\r\n    value               = \"production\"\r\n    propagate_at_launch = true\r\n  }\r\n}\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u4e4b\u540e\uff08\u5bf9\u4e8e\u8868\u8fbe\u5f0f\uff09<\/h1>\n<pre class=\"post-pre\"><code>locals {\r\n  standard_tags = {\r\n    Component   = \"serviceA\"\r\n    Environment = \"production\"\r\n  }\r\n}\r\n\r\nresource \"aws_autoscaling_group\" \"example\" {\r\n  max_size = 1\r\n  min_size = 1\r\n  tag {\r\n    key                 = \"Name\"\r\n    value               = \"example-asg-name\"\r\n  }\r\n  dynamic \"tag\" {\r\n    for_each = local.standard_tags\r\n\r\n    content {\r\n      key                 = tag.key\r\n      value               = tag.value\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5e7f\u4e49\u7684\u661f\u53f7\u8fd0\u7b97\u7b26<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u304c\u8907\u6570\u5b58\u5728\u3059\u308b\u30ea\u30bd\u30fc\u30b9\u3060\u3051\u3067\u306a\u304f\u3001\u4e00\u822c\u7684\u306aList\u306b\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f<\/ul>\n<\/li>\n<\/ul>\n<p>\u4eca\u307e\u3067\u306fcount\u3067\u4f5c\u6210\u3057\u305f\u3082\u306e\u3057\u304b\u4f7f\u3048\u306a\u304b\u3063\u305f<\/p>\n<p>\u30b9\u30d7\u30e9\u30c3\u30c8\u6f14\u7b97\u5b50\u306e\u8a18\u6cd5\u304c\u76f4\u611f\u7684\u306b\u306a\u3063\u305f<\/p>\n<p>aws_instance.this.*.public_dns<\/p>\n<p>aws_instance.this[*]public_dns<\/p>\n<p>\u305f\u3060\u3057\uff10\uff0e\uff11\uff12\u2212alpha4\u3067\u306f\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/p>\n<hr \/>\n<h1>\u6761\u4ef6\u64cd\u4f5c\u7b26\u7684\u6539\u8fdb<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6761\u4ef6\u6f14\u7b97\u5b50\u306e\u6539\u5584\u3001\u4eca\u307e\u3067\u306f\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u306a\u578b\u306b\u3057\u304b\u4f7f\u3048\u306a\u304b\u3063\u305f\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u4eca\u307e\u3067\u306f\u4e21\u65b9\u306e\u5f0f\u306e\u5024\u3092\u8a55\u4fa1\u3057\u3066\u3044\u305f\u304c\u3001\u53c2\u8003\u6f14\u7b97\u5b50\u7684\u306b\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/ul>\n<hr \/>\n<h1>\u5728 Terraform 0.11 \u4e4b\u524d\uff08\u6709\u5173\u6761\u4ef6\u8fd0\u7b97\u7b26\u7684\u6539\u8fdb\uff09<\/h1>\n<pre class=\"post-pre\"><code>output \"first_id\" {\r\n  value = \"${\"${length(\"${aws_instance.this.*.private_ip}\")}\" &gt; 0 ? \"${element(\"${aws_instance.this.*.id}\", 0)}\" : \"2\"}\"\r\n}\r\n&gt;\r\nError: Error refreshing state: 1 error(s) occurred:\r\n\r\n* output.first_id: element: element() may not be used with an empty list in:\r\n\r\n${\"${length(\"${aws_instance.this.*.private_ip}\")}\" &gt; 0 ? \"${element(\"${aws_instance.this.*.id}\", 0)}\" : \"2\"}\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u4e4b\u540e\uff08\u6761\u4ef6\u8fd0\u7b97\u7b26\u7684\u6539\u8fdb\uff09<\/h1>\n<p>\u56e0\u4e3a\u73b0\u5728\u53ef\u4ee5\u8bbf\u95ee\u4ee5\u524d\u65e0\u6cd5\u901a\u8fc7\u6570\u7ec4\u7d22\u5f15\u8bbf\u95ee\u7684\u90e8\u5206\uff0c\u6240\u4ee5\u5904\u7406\u7684\u53ef\u89c6\u6027\u5f97\u5230\u4e86\u5f88\u5927\u6539\u5584\u3002<\/p>\n<pre class=\"post-pre\"><code>output \"first_id\" {\r\n  value = length(aws_instance.this) &gt; 0 ? aws_instance.this[0].id : \"\"\r\n}\r\n&gt;\r\nOutputs:\r\n\r\nfirst_id = \r\n<\/code><\/pre>\n<hr \/>\n<h1>\u4e30\u5bcc\u591a\u6837\u7684\u6570\u503c\u7c7b\u578b<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Terraform 0.11\u4ee5\u524d\u3067\u306f\u5909\u6570\u306e\u578b\u3068\u3057\u3066\u5358\u7d14\u306alist\u3068map\u3057\u304b\u4f7f\u3048\u306a\u304b\u3063\u305f\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4eca\u5f8c\u306f\u3082\u3063\u3068\u8907\u96d1\u306a\u578b\u3092\u8868\u73fe\u51fa\u6765\u308b\u3088\u3046\u306b\u306a\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">local\u306fvariables\u306e\u8a18\u8ff0\u3092\u304d\u308c\u3044\u306b\u3067\u304d\u308b<\/ul>\n<h2>&#8211; \u5728\u8f93\u51fa\u4e2d\u8f7b\u677e\u5730\u8f93\u51fa\u8d44\u6e90\u4fe1\u606f\u3002<\/h2>\n<h1>\u5728Terraform 0.12\u7248\u672c\u4e4b\u540e\uff08\u4e30\u5bcc\u7684\u503c\u7c7b\u578b\uff09<\/h1>\n<p>\u8f93\u51fa\u65f6\u76f4\u63a5\u63cf\u8ff0output\u7684resource\uff0c\u4e0d\u4f1a\u51fa\u9519\u5e76\u8f93\u51fa\u3002<br \/>\n\u5728\u786e\u8ba4\u4f7f\u7528\u4e0b\u4e00\u4e2a\u8d44\u6e90\u65f6\uff0c\u786e\u8ba4\u5df2\u521b\u5efa\u7684\u8d44\u6e90\u7684\u5185\u5bb9\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<pre class=\"post-pre\"><code>resource \"aws_security_group\" \"this\" {\r\n  name        = \"ingress\"\r\n  description = \"Allow some inbound traffic\"\r\n  vpc_id      = local.vpc\r\n\r\n  ingress {\r\n    from_port   = 8200\r\n    to_port     = 8200\r\n    protocol    = \"tcp\"\r\n    cidr_blocks = [\"0.0.0.0\/0\"]\r\n  }\r\n\r\n  ingress {\r\n    from_port   = 8500\r\n    to_port     = 8500\r\n    protocol    = \"tcp\"\r\n    cidr_blocks = [\"0.0.0.0\/0\"]\r\n  }\r\n}\r\noutput \"sg\" {\r\n  value = aws_security_group.this\r\n}\r\n&gt;\r\nsg = {\r\n  \"arn\" = \"arn:aws:ec2:ap-northeast-1:000000000000:security-group\/sg-099659d43b1534ffa\"\r\n  \"description\" = \"Allow some inbound traffic\"\r\n  \"egress\" = []\r\n  \"id\" = \"sg-099659d43b1534ffa\"\r\n  \"ingress\" = [\r\n    {\r\n      \"cidr_blocks\" = [\r\n        \"0.0.0.0\/0\",\r\n      ]\r\n      \"description\" = \"\"\r\n      \"from_port\" = 8500\r\n      \"ipv6_cidr_blocks\" = []\r\n      \"prefix_list_ids\" = []\r\n      \"protocol\" = \"tcp\"\r\n      \"security_groups\" = []\r\n      \"self\" = false\r\n      \"to_port\" = 8500\r\n    },\r\n    {\r\n      \"cidr_blocks\" = [\r\n        \"0.0.0.0\/0\",\r\n      ]\r\n      \"description\" = \"\"\r\n      \"from_port\" = 8200\r\n      \"ipv6_cidr_blocks\" = []\r\n      \"prefix_list_ids\" = []\r\n      \"protocol\" = \"tcp\"\r\n      \"security_groups\" = []\r\n      \"self\" = false\r\n      \"to_port\" = 8200\r\n    },\r\n  ]\r\n  \"name\" = \"ingress\"\r\n  \"owner_id\" = \"000000000000\"\r\n  \"revoke_rules_on_delete\" = false\r\n  \"timeouts\" = {}\r\n  \"vpc_id\" = \"vpc-xxxxxxxx\"\r\n} \r\n<\/code><\/pre>\n<hr \/>\n<h1>\u6a21\u677f\u8bed\u6cd5<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u69cb\u6587\u306e\u4e2d\u3067\u3082For\u6587\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5f15\u6570\u5c55\u958b\u306e\u305f\u3081\u306e\u5909\u6570\u306e\u5b9a\u7fa9\u3092\u5c11\u306a\u304f\u3067\u304d\u308b<\/ul>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d<\/h1>\n<pre class=\"post-pre\"><code>    \"environment\": [\r\n      {\r\n        \"name\": \"AWS_S3_BUCKET\",\r\n        \"value\": \"${s3_bucket}\"\r\n      },\r\n      {\r\n        \"name\": \"AWS_S3_URL\",\r\n        \"value\": \"${s3_url}\"\r\n      },\r\n      {\r\n        \"name\": \"ENCRYPT_SECURE_KEY\",\r\n        \"value\": \"${secure_key}\"\r\n      },\r\n      {\r\n        \"name\": \"MYSQL_HOST\",\r\n        \"value\": \"${rds_endpoint}\"\r\n      },\r\n      {\r\n        \"name\": \"MYSQL_ROOT_PASSWORD\",\r\n        \"value\": \"${password}\"\r\n      }\r\n    ]\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u4e4b\u540e<\/h1>\n<p>\u5728\u4f7f\u7528fargate\u6216ECS\u7684\u5bb9\u5668\u5b9a\u4e49\u65f6\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528json\u683c\u5f0f\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u8ba4\u4e3a\u5c06\u73af\u5883\u4f9d\u8d56\u7684\u53d8\u91cf\u7b49\u4f5c\u4e3a\u6a21\u677f\u53d8\u91cf\u653e\u5165\u5bb9\u5668\u5185\u4f7f\u7528\u7684\u73af\u5883\u53d8\u91cf\u4e2d\u662f\u5e38\u89c1\u7684\u505a\u6cd5\u3002\u901a\u8fc7\u4f7f\u7528for\u5faa\u73af\u6765\u63cf\u8ff0\u53ef\u4ee5\u51cf\u5c11\u91cd\u590d\u7684\u5199\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>locals {\r\n  fg_env = [\r\n      {\r\n        \"name\": \"AWS_S3_BUCKET\",\r\n        \"value\": \"my.bukect\"\r\n      },\r\n      {\r\n        \"name\": \"AWS_S3_UR\",\r\n        \"value\": \"assets.localhost\"\r\n      },\r\n      {\r\n        \"name\": \"ENCRYPT_SECURE_KEY\",\r\n        \"value\": \"xxxxxxxxxxxxxxxxxxxxxxxxxx\"\r\n      },\r\n  ]\r\n  fargate_config = &lt;&lt;EOT\r\n  %{ for instance in local.fg_env ~}\r\n      {\r\n        \"name\": local.env.name,\r\n        \"value\": local.env.value\r\n      },\r\n%{ endfor }\r\nEOT\r\n}\r\n&gt; local.fg_env\r\n[\r\n  {\r\n    \"name\" = \"AWS_S3_BUCKET\"\r\n    \"value\" = \"my.bukect\"\r\n  },\r\n  {\r\n    \"name\" = \"AWS_S3_UR\"\r\n    \"value\" = \"assets.localhost\"\r\n  },\r\n  {\r\n    \"name\" = \"ENCRYPT_SECURE_KEY\"\r\n    \"value\" = \"xxxxxxxxxxxxxxxxxxxxxxxxxx\"\r\n  },\r\n]\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u53ef\u9760\u7684JSON\u8bed\u6cd5<\/h1>\n<p>&#8211; HCL\u548cJSON\u5b8c\u51681\uff1a1\u517c\u5bb9\u3002<br \/>\n&#8211; \u63d0\u5347\u9519\u8bef\u4fe1\u606f\u3002<br \/>\n&#8211; \u5728JSON\u683c\u5f0f\u4e2d\u652f\u6301\u6ce8\u91ca\u3002<\/p>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d\uff08\u53ef\u9760\u7684JSON\u8bed\u6cd5\uff1a\u30a8\u30e9\u30fc\u6587\uff09<\/h1>\n<pre class=\"post-pre\"><code>{\r\n  \"variable\": {\r\n    \"example\": \"foo\"\r\n  }\r\n}\r\n$ terraform apply\r\n\r\nError: Error loading \/home\/ec2-user\/terraform-0.11-example\/variables.tf.json: -: \"variable\" must be followed by a name\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.11\u4e4b\u524d\uff08\u53ef\u9760\u7684JSON\u8bed\u6cd5\uff1a\u30a8\u30e9\u30fc\u6587\uff09<\/h1>\n<p>\u5f53\u63cf\u8ff0\u65e0\u6548\u7ed3\u6784\u7684JSON\u65f6\uff0c\u9519\u8bef\u6d88\u606f\u53d8\u5f97\u66f4\u52a0\u6613\u4e8e\u7406\u89e3\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code>Error: Incorrect JSON value type\r\n\r\n  on variable.tf.json line 3, in variable:\r\n   3:     \"example\": \"foo\"\r\n\r\nEither a JSON object or a JSON array is required, representing the contents of\r\none or more \"variable\" blocks.\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u5728Terraform 0.12\u7248\u672c\u4e4b\u540e\uff0c\u5b83\u5177\u5907\u4e86\u53ef\u9760\u7684JSON\u8bed\u6cd5\uff1a\u8bc4\u8bba\u529f\u80fd\u3002<\/h1>\n<p>\u7531\u4e8e\u57280.11\u7248\u672c\u4e2d\u5c1d\u8bd5\u8be5\u8bed\u6cd5\u4f1a\u5bfc\u81f4\u9519\u8bef\uff0c\u56e0\u6b64\u6211\u4eec\u51b3\u5b9a\u7701\u7565\u6b64\u90e8\u5206\u3002\u4f46\u662f\u73b0\u5728\u60a8\u53ef\u4ee5\u4f7f\u7528\u7279\u6b8a\u7684&#8221;\/\/&#8221;\u952e\u6765\u6dfb\u52a0\u6ce8\u91ca\u3002\u8fd9\u4e2a&#8221;\/\/&#8221;\u952e\u5728\u6267\u884cTerraform\u65f6\u4f1a\u88ab\u5ffd\u7565\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span>\r\n  <span class=\"nl\">\"locals\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nl\">\"example\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nl\">\"\/\/\"<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"This property is comment\"<\/span><span class=\"p\">,<\/span>\r\n      <span class=\"nl\">\"default\"<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"foo\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<h1>\u603b\u7ed3\u8d77\u6765<\/h1>\n<p>\u5728Terraform v0.12\u4e2d\uff0cHCL\u8fdb\u884c\u4e86\u91cd\u5927\u5347\u7ea7\uff0c\u5e76\u4e14\u63cf\u8ff0\u8bed\u6cd5\u53d1\u751f\u4e86\u76f8\u5f53\u5927\u7684\u53d8\u5316\u3002<br \/>\n\u7136\u800c\uff0c\u5c3d\u7ba1\u4e0d\u63a8\u8350\u4f7f\u7528\u8fc7\u53bb\u7684\u63cf\u8ff0\u65b9\u5f0f\uff0c\u4f46\u4ecd\u53ef\u4ee5\u4f7f\u7528\u8bb8\u591a\u65e7\u7684\u9879\u76ee\u3002<br \/>\n\u6211\u8ba4\u4e3a\u5bf9\u4e8e\u5347\u7ea7\u73b0\u6709\u9879\u76ee\u6765\u8bf4\uff0c\u5e76\u4e0d\u4f1a\u5e26\u6765\u592a\u5927\u7684\u8d1f\u62c5\u3002<\/p>\n<p>\u8865\u5145\u8bf4\u660e\uff1a<br \/>\nTerraform 0.12\u5df2\u7ecf\u53d1\u5e03\u3002\u73b0\u5728\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53eb\u505a0.12upgrade\u7684\u547d\u4ee4\uff0c\u6267\u884c\u8be5\u547d\u4ee4\u53ef\u4ee5\u81ea\u52a8\u4fee\u590d\u4e00\u4e9b\u8f7b\u5fae\u53d8\u5316\uff0c<br \/>\n\u6bd4\u5982\u5728First-Class Expressions\u6216\u8005\u6807\u7b7e\u5b9a\u4e49\u4e2d\u9700\u8981\u4f7f\u7528&#8221;=&#8221;\u53f7\u7684\u90e8\u5206\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u662f\u5728\u7b2c6\u6b21\u540d\u53e4\u5c4b\u5e74\u8f7bWeb\u5de5\u7a0b\u5e08\u4ea4\u6d41\u4f1a\u4e0a\u6839\u636e\u6f14\u8bb2\u5185\u5bb9\u8fdb\u884c\u4fee\u8ba2\u548c\u8865\u5145\u800c\u6210\u7684\u3002\u6211\u5c55\u793a\u4e86Terraform  [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49192","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5173\u4e8eTerraform v0.12\u4e2dHCL\u63cf\u8ff0\u53d1\u751f\u7684\u53d8\u5316 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8eterraform-v0-12\u4e2dhcl\u63cf\u8ff0\u53d1\u751f\u7684\u53d8\u5316\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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