Hi all
I deploy the server by docker ，and it works well
I have modifyed the go project source code，and build successfully
my question
1、I want to repalce the bin file in docker，and use my new build file ，how？ I cannot find any bin file in docker project
2、Or I must use the “general installation”，not “ Docker install” ？
thanks and regards！
You probably want to create a new Docker image, please see the provided Dockerfile in each repository.
Hi brocaar
Thanks for your reply！
yes，I need a new Docker image
I find the “Dockerfile”，But I have not find the introduction about how to make a new Docker image use the “Dockerfile”
And if I make the new Docker image successfully，How to use the image by docker-compose？
Best regards！
When you modifying the LoRa Server source and wish to create custom Docker images, then I leave how to use Docker as your exercise 
https://docs.docker.com/ is a good starting point and contains lots of information about how to build Docker images and use them with Docker Compose.
Document is enough！ thank you
Hi brocaar
there is a problem when I try to create a Docker image
1、I can build the loraserver go project successfully
[root@localhost loraserver]# make
Generating static files
Compiling source
go build -ldflags “-s -w -X main.version=2.3.0-2-g036a553” -o build/loraserver cmd/loraserver/main.go
2、I can run go-bindata ok
[root@localhost loraserver]# go-bindata -version
go-bindata 3.1.0 (Go runtime go1.11.2).
Copyright © 2010-2013, Jim Teeuwen.
3、but when I create a docker image，It shows like blew
[root@localhost loraserver]# docker build -t lora_app_image .
… …
Step 10/15 : RUN make
—> Running in 39f4ea7127d6
Generating static files
cmd/loraserver/main.go:1: running “go-bindata”: exec: “go-bindata”: executable file not found in $PATH
make: *** [Makefile:46: statics] Error 1
The command ‘/bin/sh -c make’ returned a non-zero code: 2
makefile linenum 46
46 @go generate cmd/loraserver/main.go
Any help will be appreciate!
There is no need to first compile the source and then build the Docker image, this is all done by Docker for you, see also the Dockerfile.
Example:
$ git clone git@github.com:brocaar/loraserver.git
$ cd loraserver
# make all the modifications that you want to make
$ docker build -t my_custom_loraserver .
Then you can use the image my_custom_loraserver (instead of brocaar/loraserver) e.g. in your docker-compose.yml file.
See below the log for the Docker build of the current master branch:
~ $ cd /tmp/
/tmp $ git clone git@github.com:brocaar/loraserver.git
Cloning into 'loraserver'...
remote: Enumerating objects: 249, done.
remote: Counting objects: 100% (249/249), done.
remote: Compressing objects: 100% (158/158), done.
remote: Total 9516 (delta 119), reused 174 (delta 79), pack-reused 9267
Receiving objects: 100% (9516/9516), 6.82 MiB | 9.25 MiB/s, done.
Resolving deltas: 100% (5328/5328), done.
/tmp $ cd loraserver/
/t/loraserver (master|✔) $ docker build -t my_custom_loraserver .
Sending build context to Docker daemon 9.297MB
Step 1/16 : FROM golang:1.11-alpine AS development
---> f56365ec0638
Step 2/16 : ENV PROJECT_PATH=/go/src/github.com/brocaar/loraserver
---> Running in ce4b4a3c8a22
Removing intermediate container ce4b4a3c8a22
---> 3950eee42f2d
Step 3/16 : ENV PATH=$PATH:$PROJECT_PATH/build
---> Running in 9d90f415ce98
Removing intermediate container 9d90f415ce98
---> 1be92192192c
Step 4/16 : ENV CGO_ENABLED=0
---> Running in b2c19959fc2e
Removing intermediate container b2c19959fc2e
---> 5236318fc9b0
Step 5/16 : ENV GO_EXTRA_BUILD_ARGS="-a -installsuffix cgo"
---> Running in 1c93f4b427a3
Removing intermediate container 1c93f4b427a3
---> c78b6d08e5bb
Step 6/16 : RUN apk add --no-cache ca-certificates tzdata make git bash protobuf
---> Running in 4c96350bd9e1
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/community/x86_64/APKINDEX.tar.gz
(1/16) Installing ncurses-terminfo-base (6.1_p20180818-r1)
(2/16) Installing ncurses-terminfo (6.1_p20180818-r1)
(3/16) Installing ncurses-libs (6.1_p20180818-r1)
(4/16) Installing readline (7.0.003-r0)
(5/16) Installing bash (4.4.19-r1)
Executing bash-4.4.19-r1.post-install
(6/16) Installing nghttp2-libs (1.32.0-r0)
(7/16) Installing libssh2 (1.8.0-r3)
(8/16) Installing libcurl (7.61.1-r1)
(9/16) Installing expat (2.2.5-r0)
(10/16) Installing pcre2 (10.31-r0)
(11/16) Installing git (2.18.1-r0)
(12/16) Installing make (4.2.1-r2)
(13/16) Installing libgcc (6.4.0-r9)
(14/16) Installing libstdc++ (6.4.0-r9)
(15/16) Installing protobuf (3.5.2-r0)
(16/16) Installing tzdata (2018f-r0)
Executing busybox-1.28.4-r2.trigger
OK: 37 MiB in 30 packages
Removing intermediate container 4c96350bd9e1
---> d0641f65fe8f
Step 7/16 : RUN mkdir -p $PROJECT_PATH
---> Running in 4be6b8b1b438
Removing intermediate container 4be6b8b1b438
---> 5e41c17ef37f
Step 8/16 : COPY . $PROJECT_PATH
---> 51ef7a54a18a
Step 9/16 : WORKDIR $PROJECT_PATH
---> Running in 8e6219247e08
Removing intermediate container 8e6219247e08
---> d064742171f5
Step 10/16 : RUN make dev-requirements requirements
---> Running in 29e66d5daf74
go get -u github.com/kisielk/errcheck
go get -u golang.org/x/lint/golint
go get -u github.com/smartystreets/goconvey
go get -u golang.org/x/tools/cmd/stringer
go get -u github.com/golang/protobuf/protoc-gen-go
go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway
go get -u github.com/elazarl/go-bindata-assetfs/...
go get -u github.com/jteeuwen/go-bindata/...
go get -u github.com/golang/dep/cmd/dep
go get -u github.com/goreleaser/goreleaser
go get -u github.com/goreleaser/nfpm
dep ensure -v
(1/50) Wrote github.com/sirupsen/logrus@v1.3.0
(2/50) Wrote golang.org/x/crypto@master
(3/50) Wrote github.com/gofrs/uuid@v3.2.0
(4/50) Wrote github.com/fsnotify/fsnotify@v1.4.7
(5/50) Wrote cloud.google.com/go@v0.34.0
(6/50) Wrote github.com/brocaar/lorawan@master
(7/50) Wrote github.com/davecgh/go-spew@v1.1.1
(8/50) Wrote github.com/rubenv/sql-migrate@master
(9/50) Wrote github.com/NickBall/go-aes-key-wrap@master
(10/50) Wrote github.com/eclipse/paho.mqtt.golang@v1.1.1
(11/50) Wrote golang.org/x/text@v0.3.0
(12/50) Wrote gopkg.in/yaml.v2@v2.2.2
(13/50) Wrote google.golang.org/grpc@v1.18.0
(14/50) Wrote google.golang.org/appengine@v1.4.0
(15/50) Wrote github.com/gomodule/redigo@v2.0.0
(16/50) Wrote github.com/googleapis/gax-go@v2.0.3
(17/50) Wrote google.golang.org/genproto@master
(18/50) Wrote github.com/golang/protobuf@v1.2.0
(19/50) Wrote github.com/gopherjs/gopherjs@master
(20/50) Wrote github.com/inconshreveable/mousetrap@v1.0
(21/50) Wrote github.com/hashicorp/hcl@v1.0.0
(22/50) Wrote github.com/jmoiron/sqlx@master
(23/50) Wrote gonum.org/v1/gonum@master
(24/50) Wrote github.com/jtolds/gls@v4.20
(25/50) Wrote github.com/grpc-ecosystem/go-grpc-middleware@v1.0.0
(26/50) Wrote github.com/konsorten/go-windows-terminal-sequences@v1.0.1
(27/50) Wrote gopkg.in/gorp.v1@v1.7.2
(28/50) Wrote github.com/magiconair/properties@v1.8.0
(29/50) Wrote github.com/lib/pq@master
(30/50) Wrote github.com/jacobsa/crypto@master
(31/50) Wrote golang.org/x/exp@master
(32/50) Wrote github.com/mitchellh/mapstructure@v1.1.2
(33/50) Wrote github.com/pkg/errors@v0.8.1
(34/50) Wrote github.com/pmezard/go-difflib@v1.0.0
(35/50) Wrote github.com/pelletier/go-toml@v1.2.0
(36/50) Wrote golang.org/x/sync@master
(37/50) Wrote golang.org/x/oauth2@master
(38/50) Wrote github.com/smartystreets/assertions@1.8.3
(39/50) Wrote golang.org/x/net@master
(40/50) Wrote github.com/spf13/afero@v1.2.0
(41/50) Wrote github.com/spf13/cast@v1.3.0
(42/50) Wrote github.com/smartystreets/goconvey@1.6.3
(43/50) Wrote github.com/spf13/cobra@v0.0.3
(44/50) Wrote github.com/spf13/jwalterweatherman@v1.0.0
(45/50) Wrote github.com/spf13/pflag@v1.0.3
(46/50) Wrote golang.org/x/sys@master
(47/50) Wrote github.com/spf13/viper@v1.3.1
(48/50) Wrote github.com/stretchr/testify@v1.3.0
(49/50) Wrote go.opencensus.io@v0.18.0
(50/50) Wrote google.golang.org/api@v0.1.0
Removing intermediate container 29e66d5daf74
---> 22928b749073
Step 11/16 : RUN make
---> Running in 610d26fcd684
Generating static files
Compiling source
go build -a -installsuffix cgo -ldflags "-s -w -X main.version=2.4.1-6-g78e264d" -o build/loraserver cmd/loraserver/main.go
Removing intermediate container 610d26fcd684
---> df32d5b452c5
Step 12/16 : FROM alpine:latest AS production
latest: Pulling from library/alpine
cd784148e348: Already exists
Digest: sha256:46e71df1e5191ab8b8034c5189e325258ec44ea739bba1e5645cff83c9048ff1
Status: Downloaded newer image for alpine:latest
---> 3f53bb00af94
Step 13/16 : WORKDIR /root/
---> Running in d189518fc20f
Removing intermediate container d189518fc20f
---> e2e5eb5479bc
Step 14/16 : RUN apk --no-cache add ca-certificates tzdata
---> Running in f2e00900ced0
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.8/community/x86_64/APKINDEX.tar.gz
(1/2) Installing ca-certificates (20171114-r3)
(2/2) Installing tzdata (2018f-r0)
Executing busybox-1.28.4-r2.trigger
Executing ca-certificates-20171114-r3.trigger
OK: 8 MiB in 15 packages
Removing intermediate container f2e00900ced0
---> 84dd438b332b
Step 15/16 : COPY --from=development /go/src/github.com/brocaar/loraserver/build/loraserver .
---> 5af3324a76d3
Step 16/16 : ENTRYPOINT ["./loraserver"]
---> Running in 1dc88bfeef03
Removing intermediate container 1dc88bfeef03
---> 3c2527416a68
Successfully built 3c2527416a68
Successfully tagged my_custom_loraserver:latest
Hi brocaar
It work now! thank you 
I was following this, and successfully built it, but I have NO idea where it put the image. I need to move it another machine to actually run in docker-compose, but I can’t find whatever it outputs anywhere. FWIW it was built on a Mac.