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andriisoldatenko/debugging-containerized-go-applications

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debug dockerized Go application using Delve

Sample-app

Just hello world

make build-sample-app
make run-sample-app

Debug inside docker via delve:

Note: If you are trying to debug linux/amd64 containers on m1 echo $DOCKER_DEFAULT_PLATFORM linux/amd64 you need to revisit docker/for-mac#5191 (comment)

export DOCKER_DEFAULT_PLATFORM="" 
docker build -t dlv-debug -f Dockerfile-dlv-debug .
docker run -it dlv-debug
/usr/src/app # dlv debug
Type 'help' for list of commands.
(dlv) b main.main
Breakpoint 1 set at 0xb9d80 for main.main() ./hello.go:9
(dlv) c
> main.main() ./hello.go:9 (hits goroutine(1):1 total:1) (PC: 0xb9d80)
 4: "fmt"
 5:
 6: "rsc.io/quote"
 7: )
 8:
=> 9: func main() {
 10: nums := []int{2, 3, 4}
 11: t := dummy
 12: _ = t
 13: for i, num := range nums {
 14: if num == 3 {
(dlv)

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Different debug examples for dockerized Go application

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