Error: chaincode install failed with status: 500 - c

Question

I have created a chaincode and I am trying to install it on the peer organization. I am able to package the chaincode on the peer organization but when it turns to install phase, I got error message:
Error: chaincode install failed with status: 500 - failed to invoke backing implementation of 'InstallChaincode': could not build chaincode: docker build failed: docker image build failed: docker build failed: Error returned from build: 2
# github.com/Nik-U/pbc
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lpbc
/usr/lib/gcc/x86_64-alpine-linux-musl/9.2.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lgmp
collect2: error: ld returned 1 exit status
I am using Nik-U's go wrapper of the PBC library Nik-U pbc. In his homepage, description shows:
This package must be compiled using cgo. It also requires the installation of GMP and PBC. During the build process, this package will attempt to include <gmp.h> and <pbc/pbc.h>, and then dynamically link to GMP and PBC.
Here's what I have tried:
I have manually configured the GMP and PBC under the Nik-U's directory and changed all the addresses of <gmp.h> and <pbc.h> to the right location.
I have tried to use command ln -s /usr/local/lib/libpbc.so libpbc.so and ln -s /usr/local/lib/libgmp.so to create link library files, but it shows the same error message.
As the Nik-U wrapper uses cgo, I changed the sentence in c.go file from #cgo LDFLAGS: -lpbc -lgmp to #cgo LDFLAGS: -L/usr/local/lib -lpbc -lgmp. Inside the /usr/loca/lib there are: libgmp.a libgmp.la libgmp.so libgmp.so.10 libgmp.so.10.4.1 libpbc.a libpbc.la libpbc.so libpbc.so.1 libpbc.so.1.0.0. This change did not work. I still got the same error message.
I copied all files of the directory /usr/local/lib to the same directory of the docker container using command docker cp **.so containerName:/usr/local/lib/. It does not work.
Here are what I doubt that may be the problem:
I am using go.mod file to manage all dependencies but the go.mod does not manage the original PBC library and GMP library. However, I do not know how to use go module to manage these two libraries (written in C?).
Nik-U's pbc wrapper has to link PBC and GMP libraries dynamically, which is why my efforts to manually configure and install them in the subdirectory, and change the include information such as from #include <pbc/pbc.h> to #include <pbc-0.5.14/include/pbc.h> of no use.
Can anybody help..

Answer 1

In hyperledger fabric, chaincode is executed in the form of sandbox based on virtual environment. In other words, it is not executed in the peer, but in a new docker container.
Even if you move the *.so file to the peer, it seems that a cannot find error has occurred because the newly created chaincode does not import it.
To solve this, two tasks are required.
1. import library to fabric-ccenv docker image
The go chaincode container of the fabric occurs in the image of fabric-ccenv. Based on the fabric-ccenv image, create a new image with your library embedded
FROM fabric-ccenv:<your_fabric_tag>
COPY <your_src_library_path> <your_target_library_path>
docker build -f <your_dockerfile> -t fabric-ccenv:<your_new_fabric_tag>
2. Change core.yaml of fabric-peer
You have to change the peer's configuration. That is, set the configuration for chaincode in core.yaml.
You can set information about fabric-ccenv in the builder item of chaincode. Change this value to the value of your image created in step 1 above.
chaincode:
id:
path:
name:
#builder: $(DOCKER_NS)/fabric-ccenv:$(TWO_DIGIT_VERSION)
builder: $(DOCKER_NS)/fabric-ccenv:<your_new_fabric_tag>
pull: false
golang:
runtime: $(DOCKER_NS)/fabric-baseos:$(TWO_DIGIT_VERSION)
dynamicLink: false