102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
package aws
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import (
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"fmt"
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"log"
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"strconv"
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"strings"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/terraform"
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)
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func resourceAwsSecurityGroupRuleMigrateState(
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v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
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switch v {
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case 0:
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log.Println("[INFO] Found AWS Security Group State v0; migrating to v1")
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return migrateSGRuleStateV0toV1(is)
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default:
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return is, fmt.Errorf("Unexpected schema version: %d", v)
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}
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return is, nil
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}
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func migrateSGRuleStateV0toV1(is *terraform.InstanceState) (*terraform.InstanceState, error) {
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if is.Empty() {
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log.Println("[DEBUG] Empty InstanceState; nothing to migrate.")
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return is, nil
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}
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perm, err := migrateExpandIPPerm(is.Attributes)
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if err != nil {
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return nil, fmt.Errorf("[WARN] Error making new IP Permission in Security Group migration")
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}
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log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
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newID := ipPermissionIDHash(is.Attributes["type"], perm)
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is.Attributes["id"] = newID
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is.ID = newID
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log.Printf("[DEBUG] Attributes after migration: %#v, new id: %s", is.Attributes, newID)
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return is, nil
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}
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func migrateExpandIPPerm(attrs map[string]string) (*ec2.IPPermission, error) {
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var perm ec2.IPPermission
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tp, err := strconv.Atoi(attrs["to_port"])
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if err != nil {
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return nil, fmt.Errorf("Error converting to_port in Security Group migration")
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}
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fp, err := strconv.Atoi(attrs["from_port"])
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if err != nil {
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return nil, fmt.Errorf("Error converting from_port in Security Group migration")
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}
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perm.ToPort = aws.Long(int64(tp))
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perm.FromPort = aws.Long(int64(fp))
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perm.IPProtocol = aws.String(attrs["protocol"])
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groups := make(map[string]bool)
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if attrs["self"] == "true" {
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groups[attrs["security_group_id"]] = true
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}
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if attrs["source_security_group_id"] != "" {
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groups[attrs["source_security_group_id"]] = true
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}
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if len(groups) > 0 {
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perm.UserIDGroupPairs = make([]*ec2.UserIDGroupPair, len(groups))
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// build string list of group name/ids
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var gl []string
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for k, _ := range groups {
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gl = append(gl, k)
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}
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for i, name := range gl {
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perm.UserIDGroupPairs[i] = &ec2.UserIDGroupPair{
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GroupID: aws.String(name),
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}
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}
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}
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var cb []string
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for k, v := range attrs {
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if k != "cidr_blocks.#" && strings.HasPrefix(k, "cidr_blocks") {
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cb = append(cb, v)
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}
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}
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if len(cb) > 0 {
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perm.IPRanges = make([]*ec2.IPRange, len(cb))
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for i, v := range cb {
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perm.IPRanges[i] = &ec2.IPRange{CIDRIP: aws.String(v)}
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}
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}
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return &perm, nil
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}
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