├── Makefile
├── Makefile.uk
├── README.md
├── helloworld.go
├── kraft.cloud.yaml
├── kraft.yaml
└── server.go


/Makefile:
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 1 | UK_ROOT ?= $(PWD)/.unikraft/unikraft
 2 | UK_LIBS ?= $(PWD)/.unikraft/libs
 3 | 
 4 | LIBS := $(UK_LIBS)/compiler-rt:$(UK_LIBS)/libunwind:$(UK_LIBS)/libgo:$(UK_LIBS)/musl:$(UK_LIBS)/lwip
 5 | 
 6 | all:
 7 | 	@$(MAKE) -C $(UK_ROOT) A=$(PWD) L=$(LIBS)
 8 | 
 9 | $(MAKECMDGOALS):
10 | 	@$(MAKE) -C $(UK_ROOT) A=$(PWD) L=$(LIBS) $(MAKECMDGOALS)
11 | 


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/Makefile.uk:
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1 | $(eval $(call addgoapp,apphelloworldgo))
2 | 
3 | APPHELLOWORLDGO_SRCS-y += $(APPHELLOWORLDGO_BASE)/helloworld.go
4 | #APPHELLOWORLDGO_SRCS-y += $(APPHELLOWORLDGO_BASE)/server.go
5 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # Unikraft Go "hello world" Application
 2 | 
 3 | This application prints "hello world" using go.
 4 | 
 5 | To configure, build and run this application you need to have [kraft](https://github.com/unikraft/kraft) installed.
 6 | 
 7 | Configure the application:
 8 | ```
 9 | kraft configure
10 | ```
11 | 
12 | Build the application:
13 | ```
14 | kraft build
15 | ```
16 | 
17 | And finally, run the application:
18 | ```
19 | kraft run -M 512
20 | ```
21 | 
22 | If you want to have more control, you can configure and run the application manually.
23 | 
24 | To configure it with the desired features:
25 | ```
26 | make menuconfig
27 | ```
28 | 
29 | Build the application:
30 | ```
31 | make
32 | ```
33 | 
34 | Run the application:
35 | ```
36 | sudo qemu-system-x86_64 \
37 | 	     -kernel build/helloworld-go_kvm-x86_64 \
38 | 	     -enable-kvm \
39 | 	     -m 1G \
40 | 	     -nographic
41 | 
42 | ```
43 | 
44 | For more information about `kraft` type ```kraft -h``` or read the
45 | [documentation](http://docs.unikraft.org).
46 | 


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/helloworld.go:
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1 | package main
2 | 
3 | import "fmt"
4 | 
5 | func main() {
6 |     fmt.Println("hello world")
7 | }


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/kraft.cloud.yaml:
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 1 | specification: '0.5'
 2 | name: helloworld-go
 3 | unikraft:
 4 |   version: cloud
 5 |   kconfig:
 6 |     - CONFIG_LIBSYSCALL_SHIM_LIBCSTUBS=y
 7 |     - CONFIG_LIBPOSIX_MMAP=y
 8 |     - CONFIG_LIBUKSCHED=y
 9 |     - CONFIG_LIBUKSCHEDCOOP=y
10 |     - CONFIG_STACK_SIZE_PAGE_ORDER=5
11 | targets:
12 |   - name: kraftcloud-x86_64
13 |     architecture: x86_64
14 |     platform: firecracker
15 |     kconfig:
16 |       - CONFIG_PLAT_KVM=y
17 |       - CONFIG_KVM_BOOT_PROTO_LXBOOT=y
18 |       - CONFIG_KVM_VMM_FIRECRACKER=y
19 |       - CONFIG_VIRTIO_BUS=y
20 | libraries:
21 |   libgo:
22 |     version: stable
23 |   libunwind:
24 |     version: stable
25 |   compiler-rt:
26 |     version: stable
27 |   lwip:
28 |     version: stable
29 |   musl:
30 |     version: stable
31 |   ukp-bin:
32 |     source: https://github.com/unikraft-io/lib-ukp-bin
33 |     version: stable
34 | 


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/kraft.yaml:
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 1 | specification: '0.5'
 2 | name: helloworld-go
 3 | unikraft:
 4 |   version: '0.6'
 5 |   kconfig:
 6 |     - CONFIG_LIBSYSCALL_SHIM_LIBCSTUBS=y
 7 | targets:
 8 |   - architecture: x86_64
 9 |     platform: kvm
10 | libraries:
11 |   gcc: '0.6'
12 |   libgo: '0.6'
13 |   pthread-embedded: '0.6'
14 |   lwip: '0.6'
15 |   compiler-rt: '0.6'
16 |   libcxx: '0.6'
17 |   libcxxabi: '0.6'
18 |   libunwind: '0.6'
19 |   libucontext: '0.6'
20 |   newlib: '0.6'
21 | 


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/server.go:
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 1 | package main
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"net/http"
 6 | )
 7 | 
 8 | func hello(w http.ResponseWriter, req *http.Request) {
 9 | 
10 | 	fmt.Fprintf(w, "hello\n")
11 | }
12 | 
13 | func headers(w http.ResponseWriter, req *http.Request) {
14 | 
15 | 	for name, headers := range req.Header {
16 | 		for _, h := range headers {
17 | 			fmt.Fprintf(w, "%v: %v\n", name, h)
18 | 		}
19 | 	}
20 | }
21 | 
22 | func main() {
23 | 
24 | 	http.HandleFunc("/hello", hello)
25 | 	http.HandleFunc("/headers", headers)
26 | 
27 | 	http.ListenAndServe(":8090", nil)
28 | }
29 | 


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