{"id":1604,"date":"2019-08-06T09:36:26","date_gmt":"2019-08-06T09:36:26","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=1604"},"modified":"2020-05-02T05:41:46","modified_gmt":"2020-05-02T05:41:46","slug":"amis","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/","title":{"rendered":"AMIs"},"content":{"rendered":"\n<p>An AMI <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Expands to Amazon Machine Image <\/li><li>Is a configuration detail<\/li><li>provides information required to launch an\ninstance. <\/li><li>Can launch multiple instances from a single AMI\nif multiple instances with same configuration is needed.<\/li><li>Use different AMIs to launch instances with\ndifferent configurations.<\/li><\/ul>\n\n\n\n<p>An AMI includes <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>One or more EBS snapshots, or for\ninstance-store-backed AMIs, a template for the root volume of the instance (for\nexample, an operating system, an application server, and applications).<\/li><li>Launch permissions controlling which AWS\naccounts can use AMI to launch instances.<\/li><\/ul>\n\n\n\n<p>A block device mapping specifying volumes to attach to instance when it&#8217;s launched. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"476\" height=\"192\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/08\/image017.png\" alt=\"\" class=\"wp-image-1605\"\/><\/figure>\n\n\n\n<p>AMI Types based on characteristics:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Region <\/li><li>Operating system<\/li><li>Architecture (32-bit or 64-bit)<\/li><li>Launch Permissions<ul><li>public&nbsp; &#8211; The owner grants launch permissions to all\nAWS accounts.<\/li><\/ul><ul><li>explicit&nbsp; &#8211; The owner grants launch permissions to specific\nAWS accounts.<\/li><\/ul><ul><li>implicit&nbsp; &#8211; The owner has implicit launch permissions\nfor an AMI.<\/li><\/ul><\/li><li>Storage for the Root Device<ul><li>Backed\nby Amazon EBS &#8211; root device for an instance launched from the AMI is an Amazon\nEBS volume created from an Amazon EBS snapshot. <\/li><\/ul><ul><li>Backed\nby instance store- root device for an instance launched from AMI is an instance\nstore volume created from a template stored in Amazon S3.<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>Sharing AMIs<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Shared AMI is an AMI that a developer created\nand made available for other developers to use.<\/li><li>Using shared AMI at your own risk<\/li><li>AMIs with encrypted volumes cannot be made\npublic<\/li><li>can share an AMI with specific AWS accounts\nwithout making the AMI public<\/li><li>Use the modify-image-attribute command (AWS CLI)\nto share an AMI <\/li><li>Can also create a bookmark that allows a user to access your AMI and launch an instance in their own account  <\/li><\/ul>\n\n\n\n<p>Sharing an AMI (Console)<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Open the Amazon EC2 console at\nhttps:\/\/console.aws.amazon.com\/ec2\/.<\/li><li>In the navigation pane, choose AMIs.<\/li><li>Select your AMI in the list, and then choose\nActions, Modify Image Permissions.<\/li><li>Specify the AWS account number of the user with\nwhom you want to share the AMI in the AWS Account Number field, then choose Add\nPermission. <\/li><\/ul>\n\n\n\n<p>AMI sharing Guidelines<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Update the AMI Tools Before Using Them<\/li><li>Disable Password-Based Remote Logins for Root<\/li><li>Disable Local Root Access<\/li><li>Remove SSH Host Key Pairs<\/li><li>Install Public Key Credentials<\/li><li>Disabling sshd DNS Checks (Optional) <\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>An AMI Expands to Amazon Machine Image Is a configuration detail provides information required to launch an instance. Can launch multiple instances from a single AMI if multiple instances with same configuration is needed. Use different AMIs to launch instances with different configurations. An AMI includes One or more EBS snapshots, or for instance-store-backed AMIs,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":383,"menu_order":9,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1604","page","type-page","status-publish","hentry","category-amazon-aws"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AMIs - Testprep Training Tutorials<\/title>\n<meta name=\"description\" content=\"Can launch multiple instances from a single AMI if multiple instances with same configuration is needed.\" \/>\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.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AMIs - Testprep Training Tutorials\" \/>\n<meta property=\"og:description\" content=\"Can launch multiple instances from a single AMI if multiple instances with same configuration is needed.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/\" \/>\n<meta property=\"og:site_name\" content=\"Testprep Training Tutorials\" \/>\n<meta property=\"article:modified_time\" content=\"2020-05-02T05:41:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.testpreptraining.com\/tutorial\/wp-content\/uploads\/2019\/08\/image017.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/\",\"url\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/\",\"name\":\"AMIs - Testprep Training Tutorials\",\"isPartOf\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#website\"},\"datePublished\":\"2019-08-06T09:36:26+00:00\",\"dateModified\":\"2020-05-02T05:41:46+00:00\",\"description\":\"Can launch multiple instances from a single AMI if multiple instances with same configuration is needed.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-sysops-administrator-associate\/amis\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.testpreptraining.ai\/tutorial\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AWS Certified SysOps Administrator &#8211; 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