Created
April 5, 2023 21:07
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terraform starter file to configure AWS with github actions
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resource "aws_iam_openid_connect_provider" "github_actions" { | |
client_id_list = ["sts.amazonaws.com"] | |
thumbprint_list = ["6938fd4d98bab03faadb97b34396831e3780aea1"] | |
url = "https://token.actions.githubusercontent.com" | |
} | |
data "aws_iam_policy_document" "github_actions_assume_role_policy" { | |
statement { | |
actions = ["sts:AssumeRole"] | |
principals { | |
type = "AWS" | |
identifiers = [ | |
format( | |
"arn:aws:iam::%s:root", | |
data.aws_caller_identity.current.account_id | |
) | |
] | |
} | |
} | |
statement { | |
actions = ["sts:AssumeRoleWithWebIdentity"] | |
principals { | |
type = "Federated" | |
identifiers = [ | |
aws_iam_openid_connect_provider.github_actions.arn | |
] | |
} | |
condition { | |
test = "StringEquals" | |
variable = "token.actions.githubusercontent.com:aud" | |
values = [ | |
"sts.amazonaws.com", | |
] | |
} | |
condition { | |
test = "StringLike" | |
variable = "token.actions.githubusercontent.com:sub" | |
values = ["repo:barracuda-internal/${local.repo}:*"] | |
} | |
} | |
} | |
resource "aws_iam_role" "github_actions" { | |
name = "${local.jdata.prefix}-github-actions" | |
assume_role_policy = data.aws_iam_policy_document.github_actions_assume_role_policy.json | |
} | |
data "aws_iam_policy_document" "github_actions" { | |
# docker login to ECR access | |
statement { | |
actions = [ | |
"ecr:GetAuthorizationToken", | |
] | |
resources = ["*"] | |
} | |
# ECR push only access | |
statement { | |
actions = [ | |
"ecr:BatchCheckLayerAvailability", | |
"ecr:CompleteLayerUpload", | |
"ecr:InitiateLayerUpload", | |
"ecr:PutImage", | |
"ecr:UploadLayerPart", | |
] | |
resources = [format("arn:aws:ecr:%s:%s:repository/${local.jdata.prefix}*", var.aws_region, data.aws_caller_identity.current.account_id)] | |
} | |
# Access SSM | |
statement { | |
actions = [ | |
"ssm:GetParameters", | |
"ssm:GetParameter", | |
] | |
resources = [ | |
format("arn:aws:ssm:%s:%s:parameter/%s/*", var.aws_region, data.aws_caller_identity.current.account_id, local.jdata.prefix) | |
] | |
} | |
} | |
resource "aws_iam_role_policy" "github_actions" { | |
name = "${local.jdata.prefix}-github-actions" | |
role = aws_iam_role.github_actions.id | |
policy = data.aws_iam_policy_document.github_actions.json | |
} |
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