could not import C: failure with confluent-kafka-go in docker alpine

[fabriziomoscon]

Thank you for maintaining this great tool @bombsimon !

• Yes, I'm using a binary release within 2 latest major releases. Only such installations are supported.
• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've included all information below (version, config, etc).

Please include the following information:

Version of golangci-lint

$ golangci-lint --version
golangci-lint has version 1.31.0

Config file

$ cat .golangci.yml
# options for analysis running
run:
  # default concurrency is a available CPU number
  concurrency: 4

  # timeout for analysis, e.g. 30s, 5m, default is 1m
  deadline: 1m

  skip-files:
    - mock.go

  modules-download-mode: vendor

# all available settings of specific linters
linters-settings:
  errcheck:
    # report about not checking of errors in type assetions: `a := b.(MyStruct)`;
    check-type-assertions: true
    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
    check-blank: true
  govet:
    # report about shadowed variables
    check-shadowing: true
  gocyclo:
    # minimal code complexity to report, 30 by default (but we recommend 10-20)
    min-complexity: 15
  lll:
    # max line length, lines longer will be reported. Default is 120.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
    line-length: 200
  unused:
    # treat code as a program (not a library) and report unused exported identifiers
    check-exported: false
  unparam:
    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
    check-exported: true
  nakedret:
    # make an issue if func has more lines of code than this setting and it has naked returns
    max-func-lines: 60
  prealloc:
    # Report preallocation suggestions only on simple loops that have no returns/breaks/continues/gotos in them.
    simple: true
    range-loops: true # Report preallocation suggestions on range loops
    for-loops: false # Report preallocation suggestions on for loops

linters:
  disable-all: true
  enable:
    - govet
    - errcheck
    - gocyclo
    - structcheck
    - varcheck
    - ineffassign
    - deadcode
    - golint
    - interfacer
    - unconvert
    - goconst
    - gocyclo
    - staticcheck
    - unused
    - gosimple
    - dupl
    - gofmt
    - gosec
    - lll
    - megacheck
    - gocritic
  fast: false

issues:
  # Independently from option `exclude` we use default exclude patterns,
  # it can be disabled by this option. To list all
  # excluded by default patterns execute `golangci-lint run --help`.
  # Default value for this option is true.
  exclude-use-default: true
  exclude:
    - "File is not `goimports`-ed"
    # TODO fix the following lint checks and remove them from exclude
    - "hugeParam"
    - "paramTypeCombine"
    - "importShadow"

Go environment

$ go version && go env
go 1.14
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/src/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build039915949=/tmp/go-build -gno-record-gcc-switches"

Verbose output of running

$ golangci-lint cache clean
$ golangci-lint run -v
level=warning msg="[runner] Can't run linter goanalysis_metalinter: deadcode: analysis skipped: errors in package: [
    /src/kafka/cfg.go:4:17: could not import github.com/confluentinc/confluent-kafka-go/kafka
    (/src/vendor/github.com/confluentinc/confluent-kafka-go/kafka/00version.go:48:8: could not import C (cgo preprocessing failed)) /src/kafka/consumer.go:17:2: 
    \"github.com/davecgh/go-spew/spew\" imported but not used /src/kafka/consumer.go:8:2: 
    \"strconv\" imported but not used /src/kafka/consumer_channel.go:10:2: 
    \"github.com/prometheus/client_golang/prometheus\" imported but not used /src/kafka/consumer_channel.go:6:2: 
    \"github.com/90poe/service-chassis/streaming/logs\" imported but not used
    ]"

level=warning msg="[runner] Can't run linter unused: buildir: failed to load package kafka: could not load export data: no export data for \"github.com/confluentinc/confluent-kafka-go/kafka\""

level=error msg="Running error: buildir: failed to load package kafka: could not load export data: no export data for \"github.com/confluentinc/confluent-kafka-go/kafka\""

I tried the suggestions for this issue #1176 without success.

In docker the lint fails when I run on an alpine (golang:1.14.10-alpine3.12) base image, but succeeds with a Debian base image (golang:1.14.10-buster).

To build the repo under alpine we use go build -tags musl ./..., so I strongly suspect that the error is around must-dev, but I can't work out which file/setting is present in the Debian base image, absent in the Alpine base image.

The repo uses

github.com/confluentinc/confluent-kafka-go v1.4.2

The Dockerfile I use is

##################
### base stage ###
##################
FROM golang:1.14.10-alpine3.12 as base

ARG ALPINE_VERSION=v3.12
ARG LIBRESSL_VERSION=3.1
ARG LIBRDKAFKA_VERSION=1.4.2-r0

ARG GOLANGCI_VERSION=v1.30.0
ARG PROTOC_GEN_GO_VERSION=v1.4.2

# those bad guys are required to build C with Golang. Some of them may be redundant
RUN apk add --no-cache git \
    zstd \
    perl \
    openssl \
    curl \
    upx \
    openssh \
    bash \
    gcc \
    make \
    pkgconfig \
    gcc \
    g++ \
    musl-dev \
    yajl-dev \
    zlib-dev \
    cyrus-sasl-dev \
    lz4-dev \
    openssl-dev \
    libc-dev \
    bsd-compat-headers \
    build-base \
    coreutils \
    docker-compose \
    imagemagick \
    imagemagick-dev \
    ca-certificates \
    libressl${LIBRESSL_VERSION}-libcrypto libressl${LIBRESSL_VERSION}-libssl --update-cache --repository http://nl.alpinelinux.org/alpine/${ALPINE_VERSION}/main \
    librdkafka=${LIBRDKAFKA_VERSION} --update-cache --repository http://nl.alpinelinux.org/alpine/${ALPINE_VERSION}/community \
    librdkafka-dev=${LIBRDKAFKA_VERSION} --update-cache --repository http://nl.alpinelinux.org/alpine/${ALPINE_VERSION}/community

WORKDIR /src

COPY . ./

#######################
### lint-base stage ###
#######################
FROM golangci/golangci-lint:v1.31-alpine AS lint-base

##################
### lint stage ###
##################
FROM base AS lint
COPY --from=lint-base /usr/bin/golangci-lint /usr/bin/golangci-lint
RUN golangci-lint run --allow-parallel-runners -c .golangci.yml

Makefile

go mod download
go mod vendor
docker build --force-rm --target=lint

[boring-cyborg]

Hey, thank you for opening your first Issue ! 🙂 If you would like to contribute we have a guide for contributors.

[fabriziomoscon]

this is fixed by using --build-tags

golangci-lint run --build-tags=musl -c .golangci.yml ./...

[jatinkapoor1313]

this is fixed by using --build-tags

golangci-lint run --build-tags=musl -c .golangci.yml ./...

this is not working - what this command is doing? I am not able to find .golangci.yml
getting err - ERRO Can't read config: can't read viper config: open .golangci.yml: no such file or directory