Merge pull request #55 from dweomer/static-build

build: adjust to using netcgo as k3s does

Author: dweomer

Dockerfile

@@ -90,8 +90,8 @@ ARG GOPATH=/go
 ARG CONTAINERD_VERSION="v1.3.4+k3c.1"
 ARG CONTAINERD_PACKAGE=github.com/dweomer/containerd
 ARG CONTAINERD_BUILDTAGS="apparmor seccomp selinux netgo osusergo static_build no_btrfs"
-ARG CONTAINERD_EXTRA_FLAGS="-buildmode pie"
-ARG CONTAINERD_EXTRA_LDFLAGS='-w -s -extldflags "-fno-PIC -static"'
+ARG CONTAINERD_EXTRA_FLAGS="-buildmode=pie"
+ARG CONTAINERD_EXTRA_LDFLAGS='-w -s -extldflags "-fpic -static"'
 RUN git clone -b "${CONTAINERD_VERSION}" "https://${CONTAINERD_PACKAGE}.git" ${GOPATH}/src/github.com/containerd/containerd
 WORKDIR ${GOPATH}/src/github.com/containerd/containerd
 ENV GO111MODULE=off

Makefile

@@ -68,13 +68,13 @@ endif
 ifdef BUILDTAGS
     GO_BUILDTAGS = ${BUILDTAGS}
 else
-	GO_BUILDTAGS = apparmor seccomp selinux netgo osusergo static_build no_btrfs
+	GO_BUILDTAGS = apparmor seccomp selinux netcgo osusergo static_build no_btrfs
 endif
 GO_BUILDTAGS += ${DEBUG_TAGS}
 GO_TAGS=$(if $(GO_BUILDTAGS),-tags "$(GO_BUILDTAGS)",)
 
 GO_BUILDFLAGS ?= -buildmode=pie
-GO_EXTLDFLAGS ?= -fno-PIC -static
+GO_EXTLDFLAGS ?= -static
 GO_LDFLAGS ?= $(EXTRA_LDFLAGS)
 GO_LDFLAGS += -X ${PKG}/pkg/version.Version=$(VERSION)
 GO_LDFLAGS += -X ${PKG}/pkg/version.GitCommit=$(REVISION)