aws / aws-app-mesh-examples
Duplication

Places in code with 6 or more lines that are exactly the same.

Intro
  • For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
  • Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
  • You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
Learn more...
Duplication Overall
  • 81% duplication:
    • 44,835 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 36,696 duplicated lines
  • 18,369 duplicates
system81% (36,696 lines)
Duplication per Extension
yaml86% (27,853 lines)
go89% (3,623 lines)
yml58% (2,864 lines)
py67% (1,045 lines)
rb82% (577 lines)
cfg91% (387 lines)
toml95% (137 lines)
proto92% (132 lines)
tpl57% (60 lines)
js7% (18 lines)
Duplication per Component (primary)
walkthroughs/howto-metrics-extension-ecs93% (5,468 lines)
walkthroughs/howto-ecs-basics96% (2,627 lines)
walkthroughs/howto-mutual-tls-file-provided-by-acm83% (1,719 lines)
walkthroughs/howto-grpc99% (1,710 lines)
walkthroughs/howto-http-headers83% (1,322 lines)
walkthroughs/eks-app-mesh-cross-account-acm99% (1,141 lines)
walkthroughs/howto-timeout-policy83% (1,073 lines)
walkthroughs/howto-ingress-gateway96% (1,053 lines)
walkthroughs/howto-grpc-ingress-gateway92% (1,050 lines)
blogs/ecs-canary-deployments-pipeline46% (1,045 lines)
walkthroughs/howto-k8s-grpc100% (1,025 lines)
walkthroughs/howto-tls-file-provided90% (1,000 lines)
walkthroughs/howto-http294% (994 lines)
walkthroughs/eks-app-mesh-multi-account100% (933 lines)
walkthroughs/howto-circuit-breakers91% (913 lines)
walkthroughs/howto-match-and-rewrite-at-ingress97% (866 lines)
blogs/eks-canary-deployments-pipeline64% (862 lines)
blogs/ecs-ec2-crossvpc-with-tls55% (861 lines)
walkthroughs/tls-with-acm98% (811 lines)
walkthroughs/eks-getting-started89% (806 lines)
walkthroughs/howto-alb76% (758 lines)
walkthroughs/howto-cross-account81% (757 lines)
walkthroughs/howto-multiple-listeners79% (746 lines)
walkthroughs/howto-outlier-detection87% (728 lines)
walkthroughs/howto-mutual-tls-file-provided97% (708 lines)
walkthroughs/howto-http-retries96% (700 lines)
blogs/ecs-cross-account57% (678 lines)
blogs/cert-manager-tls83% (657 lines)
blogs/ecs-service-connectivity46% (602 lines)
blogs/eks-multi-account-spire58% (544 lines)
walkthroughs/howto-servicediscovery-cloudmap68% (536 lines)
blogs/eks-appmesh-connectivity44% (245 lines)
walkthroughs/howto-k8s-fargate91% (203 lines)
walkthroughs/howto-k8s-mtls-file-based92% (173 lines)
blogs/eks-bulkhead-pattern-circuit-breaker42% (160 lines)
walkthroughs/howto-k8s-tls-file-based96% (154 lines)
walkthroughs/howto-k8s-mtls-sds-based42% (147 lines)
walkthroughs/howto-k8s-outlier-detection100% (144 lines)
walkthroughs/fargate50% (129 lines)
walkthroughs/howto-k8s-http2100% (107 lines)
walkthroughs/howto-k8s-connection-pools96% (57 lines)
walkthroughs/howto-k8s-http-headers100% (54 lines)
walkthroughs/howto-k8s-tls-acm100% (54 lines)
walkthroughs/howto-k8s-egress100% (54 lines)
walkthroughs/howto-k8s-alb100% (54 lines)
walkthroughs/howto-k8s-cross-cluster100% (49 lines)
walkthroughs/howto-k8s-cloudmap100% (49 lines)
walkthroughs/howto-k8s-retry-policy83% (47 lines)
walkthroughs/howto-k8s-timeout-policy76% (39 lines)
walkthroughs/howto-k8s-grpc-ingress-v213% (28 lines)
walkthroughs/howto-k8s-ingress-gateway100% (20 lines)
walkthroughs/howto-k8s-http-ingress-v2100% (20 lines)
walkthroughs/eks7% (16 lines)

Duplication Between Components (50+ lines)

G walkthroughs/howto-grpc-ingress-gateway walkthroughs/howto-grpc-ingress-gateway walkthroughs/howto-grpc walkthroughs/howto-grpc walkthroughs/howto-grpc-ingress-gateway--walkthroughs/howto-grpc 2530 walkthroughs/howto-k8s-grpc walkthroughs/howto-k8s-grpc walkthroughs/howto-grpc-ingress-gateway--walkthroughs/howto-k8s-grpc 1435 walkthroughs/howto-http2 walkthroughs/howto-http2 walkthroughs/howto-grpc-ingress-gateway--walkthroughs/howto-http2 1227 walkthroughs/howto-grpc--walkthroughs/howto-k8s-grpc 2050 walkthroughs/howto-grpc--walkthroughs/howto-http2 1532 walkthroughs/eks-app-mesh-cross-account-acm walkthroughs/eks-app-mesh-cross-account-acm walkthroughs/eks-app-mesh-multi-account walkthroughs/eks-app-mesh-multi-account walkthroughs/eks-app-mesh-cross-account-acm--walkthroughs/eks-app-mesh-multi-account 2021 walkthroughs/eks-getting-started walkthroughs/eks-getting-started walkthroughs/eks-app-mesh-cross-account-acm--walkthroughs/eks-getting-started 1267 walkthroughs/howto-alb walkthroughs/howto-alb walkthroughs/howto-ecs-basics walkthroughs/howto-ecs-basics walkthroughs/howto-alb--walkthroughs/howto-ecs-basics 2015 walkthroughs/howto-ecs-basics--walkthroughs/howto-grpc-ingress-gateway 1243 walkthroughs/howto-ecs-basics--walkthroughs/howto-grpc 1292 walkthroughs/howto-http-headers walkthroughs/howto-http-headers walkthroughs/howto-ecs-basics--walkthroughs/howto-http-headers 1702 walkthroughs/howto-http-retries walkthroughs/howto-http-retries walkthroughs/howto-ecs-basics--walkthroughs/howto-http-retries 1414 walkthroughs/howto-metrics-extension-ecs walkthroughs/howto-metrics-extension-ecs walkthroughs/howto-ecs-basics--walkthroughs/howto-metrics-extension-ecs 1809 walkthroughs/howto-timeout-policy walkthroughs/howto-timeout-policy walkthroughs/howto-ecs-basics--walkthroughs/howto-timeout-policy 1281 walkthroughs/howto-outlier-detection walkthroughs/howto-outlier-detection walkthroughs/howto-ecs-basics--walkthroughs/howto-outlier-detection 1414 walkthroughs/howto-ecs-basics--walkthroughs/howto-http2 1366 walkthroughs/howto-mutual-tls-file-provided-by-acm walkthroughs/howto-mutual-tls-file-provided-by-acm walkthroughs/howto-ecs-basics--walkthroughs/howto-mutual-tls-file-provided-by-acm 1218 walkthroughs/howto-servicediscovery-cloudmap walkthroughs/howto-servicediscovery-cloudmap walkthroughs/howto-ecs-basics--walkthroughs/howto-servicediscovery-cloudmap 1234 walkthroughs/howto-http-headers--walkthroughs/howto-http-retries 1944 walkthroughs/howto-http-headers--walkthroughs/howto-outlier-detection 1654 walkthroughs/howto-http-headers--walkthroughs/howto-http2 1310 walkthroughs/howto-ingress-gateway walkthroughs/howto-ingress-gateway walkthroughs/howto-ingress-gateway--walkthroughs/howto-timeout-policy 1799 walkthroughs/howto-tls-file-provided walkthroughs/howto-tls-file-provided walkthroughs/howto-ingress-gateway--walkthroughs/howto-tls-file-provided 1620 walkthroughs/tls-with-acm walkthroughs/tls-with-acm walkthroughs/howto-ingress-gateway--walkthroughs/tls-with-acm 1589 walkthroughs/howto-match-and-rewrite-at-ingress walkthroughs/howto-match-and-rewrite-at-ingress walkthroughs/howto-ingress-gateway--walkthroughs/howto-match-and-rewrite-at-ingress 1658 walkthroughs/howto-ingress-gateway--walkthroughs/howto-mutual-tls-file-provided-by-acm 1433 walkthroughs/howto-mutual-tls-file-provided walkthroughs/howto-mutual-tls-file-provided walkthroughs/howto-ingress-gateway--walkthroughs/howto-mutual-tls-file-provided 1290 walkthroughs/howto-multiple-listeners walkthroughs/howto-multiple-listeners walkthroughs/howto-ingress-gateway--walkthroughs/howto-multiple-listeners 1480 walkthroughs/howto-timeout-policy--walkthroughs/howto-tls-file-provided 1769 walkthroughs/howto-timeout-policy--walkthroughs/tls-with-acm 1766 walkthroughs/howto-tls-file-provided--walkthroughs/tls-with-acm 1634 walkthroughs/howto-circuit-breakers walkthroughs/howto-circuit-breakers walkthroughs/howto-circuit-breakers--walkthroughs/howto-ingress-gateway 1729 walkthroughs/howto-circuit-breakers--walkthroughs/howto-timeout-policy 1403 walkthroughs/howto-circuit-breakers--walkthroughs/howto-tls-file-provided 1324 walkthroughs/howto-circuit-breakers--walkthroughs/tls-with-acm 1247 walkthroughs/howto-circuit-breakers--walkthroughs/howto-match-and-rewrite-at-ingress 1718 walkthroughs/howto-circuit-breakers--walkthroughs/howto-mutual-tls-file-provided-by-acm 1237 walkthroughs/howto-circuit-breakers--walkthroughs/howto-multiple-listeners 1456 walkthroughs/howto-match-and-rewrite-at-ingress--walkthroughs/howto-timeout-policy 1377 walkthroughs/howto-match-and-rewrite-at-ingress--walkthroughs/howto-tls-file-provided 1261 walkthroughs/howto-match-and-rewrite-at-ingress--walkthroughs/howto-mutual-tls-file-provided-by-acm 1223 walkthroughs/howto-match-and-rewrite-at-ingress--walkthroughs/howto-multiple-listeners 1423 walkthroughs/howto-mutual-tls-file-provided-by-acm--walkthroughs/howto-timeout-policy 1358 walkthroughs/howto-mutual-tls-file-provided-by-acm--walkthroughs/howto-tls-file-provided 1308 walkthroughs/howto-mutual-tls-file-provided-by-acm--walkthroughs/tls-with-acm 1216 walkthroughs/howto-mutual-tls-file-provided-by-acm--walkthroughs/howto-mutual-tls-file-provided 1530 walkthroughs/howto-mutual-tls-file-provided--walkthroughs/howto-tls-file-provided 1332 walkthroughs/howto-multiple-listeners--walkthroughs/howto-timeout-policy 1274 walkthroughs/howto-cross-account walkthroughs/howto-cross-account walkthroughs/howto-cross-account--walkthroughs/howto-ecs-basics 1391 walkthroughs/howto-cross-account--walkthroughs/howto-http2 1273

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 18,369 duplicates...
Size#FoldersFilesLinesCode
561 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v3.yaml
djapp-v4.yaml
 597:1178 (51%)
602:1183 (51%)
 view
481 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v3.yaml
djapp-v4.yaml
 1:552 (44%)
1:552 (44%)
 view
458 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v1.yaml
djapp-v2.yaml
 1:526 (43%)
1:526 (43%)
 view
444 x 2 walkthroughs/howto-ecs-basics/deploy
walkthroughs/howto-ecs-basics/deploy
2-meshify.yaml
3-routing.yaml
 1:495 (62%)
1:495 (48%)
 view
419 x 2 walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_client/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-k8s-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-k8s-grpc/color_client/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc/color_server/color
walkthroughs/howto-k8s-grpc/color_client/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_client/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-k8s-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
419 x 2 walkthroughs/howto-grpc/color_server/color
walkthroughs/howto-k8s-grpc/color_server/color
color.pb.go
color.pb.go
 17:647 (100%)
17:647 (100%)
 view
404 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v1.yaml
djapp-v5.yaml
 1:472 (38%)
1:472 (34%)
 view
404 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v2.yaml
djapp-v5.yaml
 1:472 (38%)
1:472 (34%)
 view
310 x 2 walkthroughs/eks-app-mes...ount-acm/infrastructure
walkthroughs/eks-app-mes...-account/infrastructure
infrastructure_backend.yaml
infrastructure_backend.yaml
 1:358 (100%)
1:376 (100%)
 view
294 x 2 walkthroughs/howto-http-headers
walkthroughs/howto-http-retries
app.yaml
app.yaml
 424:732 (22%)
127:435 (63%)
 view
280 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v2.yaml
djapp-v3.yaml
 1:334 (26%)
1:334 (25%)
 view
280 x 2 walkthroughs/howto-metrics-extension-ecs/deploy
walkthroughs/howto-metrics-extension-ecs/deploy
djapp-v1.yaml
djapp-v3.yaml
 1:334 (26%)
1:334 (25%)
 view
Duplicated Units
The list of top 20 duplicated units.
See data for all 43 unit duplicates...
Size#FoldersFilesLinesCode
101 x 2 walkthroughs/howto-k8s-grpc/color_client
walkthroughs/howto-grpc/color_client
main.go
main.go
 30:140 
30:140 
 view
67 x 2 walkthroughs/howto-circu...reakers/src/colorteller
walkthroughs/howto-match...ingress/src/colorteller
main.go
main.go
 21:94 
21:94 
 view
65 x 2 walkthroughs/howto-k8s-http2/color_server
walkthroughs/howto-http2/color_server
main.go
main.go
 20:91 
20:91 
 view
59 x 2 walkthroughs/howto-k8s-http2/color_client
walkthroughs/howto-http2/color_client
main.go
main.go
 15:79 
15:79 
 view
47 x 2 walkthroughs/howto-outli...ection/src/frontend-app
walkthroughs/howto-k8s-outlier-detection/feapp
main.go
main.go
 46:94 
46:94 
 view
32 x 2 walkthroughs/eks-getting...lb-appserver-v2/modules
blogs/ecs-service-connec.../yelb-appserver/modules
restaurantsdbupdate.rb
restaurantsdbupdate.rb
 4:37 
4:37 
 view
30 x 2 walkthroughs/eks-getting...lb-appserver-v2/modules
blogs/ecs-service-connec.../yelb-appserver/modules
pageviews.rb
pageviews.rb
 3:34 
3:34 
 view
24 x 2 walkthroughs/howto-k8s-fargate/src/feapp
walkthroughs/howto-ecs-basics/src/feapp
main.go
main.go
 126:155 
126:155 
 view
23 x 2 walkthroughs/howto-k8s-grpc/color_server
walkthroughs/howto-grpc/color_server
main.go
main.go
 62:85 
62:85 
 view
23 x 2 walkthroughs/eks-getting...lb-appserver-v2/modules
blogs/ecs-service-connec.../yelb-appserver/modules
restaurantsdbread.rb
restaurantsdbread.rb
 4:28 
4:28 
 view
21 x 7 walkthroughs/howto-k8s-alb/feapp
walkthroughs/howto-k8s-tls-acm/feapp
walkthroughs/howto-k8s-http-headers/feapp
walkthroughs/howto-k8s-tls-file-based/feapp
walkthroughs/howto-k8s-mtls-sds-based/feapp
walkthroughs/howto-k8s-mtls-file-based/feapp
walkthroughs/howto-k8s-egress/feapp
serve.py
serve.py
serve.py
serve.py
serve.py
serve.py
serve.py
 0:0 
0:0 
0:0 
0:0 
0:0 
0:0 
0:0 
 view
16 x 5 walkthroughs/howto-k8s-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
color.pb.go
color.pb.go
color.pb.go
 553:569 
553:569 
553:569 
553:569 
553:569 
 view
16 x 5 walkthroughs/howto-k8s-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
color.pb.go
color.pb.go
color.pb.go
 571:587 
571:587 
571:587 
571:587 
571:587 
 view
16 x 5 walkthroughs/howto-k8s-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
color.pb.go
color.pb.go
color.pb.go
 589:605 
589:605 
589:605 
589:605 
589:605 
 view
16 x 5 walkthroughs/howto-k8s-grpc/color_client/color
walkthroughs/howto-k8s-grpc/color_server/color
walkthroughs/howto-grpc-...eway/color_server/color
walkthroughs/howto-grpc/color_client/color
walkthroughs/howto-grpc/color_server/color
color.pb.go
color.pb.go
color.pb.go
color.pb.go
color.pb.go
 607:623 
607:623 
607:623 
607:623 
607:623 
 view
16 x 2 walkthroughs/howto-k8s-fargate/src/feapp
walkthroughs/howto-ecs-basics/src/feapp
main.go
main.go
 63:81 
63:81 
 view
15 x 2 walkthroughs/howto-k8s-fargate/src/feapp
walkthroughs/howto-ecs-basics/src/feapp
main.go
main.go
 92:110 
92:110 
 view
15 x 2 walkthroughs/howto-outli...ection/src/frontend-app
walkthroughs/howto-k8s-outlier-detection/feapp
main.go
main.go
 116:131 
116:131 
 view
14 x 2 walkthroughs/howto-outli...ection/src/frontend-app
walkthroughs/howto-k8s-outlier-detection/feapp
main.go
main.go
 96:110 
96:110 
 view
12 x 2 walkthroughs/howto-k8s-fargate/src/feapp
walkthroughs/howto-ecs-basics/src/feapp
main.go
main.go
 164:180 
164:180 
 view