Initial commit

.circleci/config.yml

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+version: 2
+
+jobs:
+  image:
+    docker:
+      - image: docker:18.06
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run: docker build
+               -t ${DOCKER_LOGIN}/crane:latest
+               .docker
+      - run: > 
+          [ ${CIRCLE_TAG} ] && docker login -u ${DOCKER_LOGIN} -p ${DOCKER_PASSWORD} || true
+      - run: >
+          [ ${CIRCLE_TAG} ] && docker tag ${DOCKER_LOGIN}/crane:latest ${DOCKER_LOGIN}/crane:${CIRCLE_TAG} || true
+      - run: > 
+          [ ${CIRCLE_TAG} ] && docker push ${DOCKER_LOGIN}/crane:latest ${DOCKER_LOGIN}/crane:${CIRCLE_TAG} || true
+
+  binary:
+    docker:
+      - image: golang:1.10-alpine
+    working_directory: /go/src/github.com/elemir/crane
+    steps:
+      - checkout
+      - run: apk add git musl-dev gcc
+      - run: go get -u github.com/golang/dep/cmd/dep
+      - run: go get -u github.com/tcnksm/ghr
+      - run: dep ensure -v
+      - run: go build --ldflags "-X main.DefaultRepo=$DOCKER_LOGIN -X main.DefaultTag=${CIRCLE_TAG:-latest} -s -w -linkmode external -extldflags '-static'" -o /tmp/crane
+      - run: > 
+          [ ${CIRCLE_TAG} ] && ghr ${CIRCLE_TAG} /tmp/crane || true
+      - store_artifacts:
+          path: /tmp/crane
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - image:
+          filters:
+            tags:
+              only: /^v.*/
+      - binary:
+          filters:
+            tags:
+              only: /^v.*/
+

.docker/Dockerfile

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+FROM alpine:3.8
+
+RUN apk add --no-cache strace gdb vim bind-tools ethtool iproute2 iptables go mariadb-client redis

.gitignore

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+vendor
+crane

Gopkg.toml

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+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#  name = "github.com/x/y"
+#  version = "2.4.0"
+
+[[override]]
+  name = "github.com/docker/docker"
+  revision = "3e1df952b7d693ac3961f492310852bdf3106240"
+
+[[override]]
+  name = "github.com/docker/distribution"
+  revision = "0dae0957e5fe3156c265d22bef4cba9efbf388e2"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/elemir/rainforest"
+
+[[constraint]]
+  name = "github.com/fsouza/go-dockerclient"
+  version = "1.2.2"
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "0.0.3"

README.md

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+# crane ![CircleCI](https://img.shields.io/circleci/project/github/elemir/crane.svg) ![license](https://img.shields.io/github/license/elemir/crane.svg)
+## description
+crane -- small utility for debugging containerized application. It creates special debug container from prepared image which:
+
+* uses IPC, PID и network namespaces from debugged container
+* mount its filesystem into special path /cont
+