75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package aws
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import (
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"log"
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"regexp"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/inspector"
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)
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// diffTags takes our tags locally and the ones remotely and returns
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// the set of tags that must be created, and the set of tags that must
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// be destroyed.
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func diffTagsInspector(oldTags, newTags []*inspector.ResourceGroupTag) ([]*inspector.ResourceGroupTag, []*inspector.ResourceGroupTag) {
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// First, we're creating everything we have
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create := make(map[string]interface{})
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for _, t := range newTags {
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create[*t.Key] = *t.Value
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}
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// Build the list of what to remove
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var remove []*inspector.ResourceGroupTag
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for _, t := range oldTags {
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old, ok := create[*t.Key]
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if !ok || old != *t.Value {
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// Delete it!
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remove = append(remove, t)
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}
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}
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return tagsFromMapInspector(create), remove
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}
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// tagsFromMap returns the tags for the given map of data.
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func tagsFromMapInspector(m map[string]interface{}) []*inspector.ResourceGroupTag {
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var result []*inspector.ResourceGroupTag
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for k, v := range m {
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t := &inspector.ResourceGroupTag{
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Key: aws.String(k),
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Value: aws.String(v.(string)),
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}
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if !tagIgnoredInspector(t) {
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result = append(result, t)
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}
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}
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return result
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}
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// tagsToMap turns the list of tags into a map.
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func tagsToMapInspector(ts []*inspector.ResourceGroupTag) map[string]string {
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result := make(map[string]string)
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for _, t := range ts {
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if !tagIgnoredInspector(t) {
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result[*t.Key] = *t.Value
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}
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}
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return result
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}
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// compare a tag against a list of strings and checks if it should
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// be ignored or not
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func tagIgnoredInspector(t *inspector.ResourceGroupTag) bool {
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filter := []string{"^aws:"}
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for _, v := range filter {
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log.Printf("[DEBUG] Matching %v with %v\n", v, *t.Key)
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if r, _ := regexp.MatchString(v, *t.Key); r == true {
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log.Printf("[DEBUG] Found AWS specific tag %s (val: %s), ignoring.\n", *t.Key, *t.Value)
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return true
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}
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}
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return false
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}
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