Fixed Dockerfile, dockerized devx, added more doc

.devcontainer/Dockerfile

@@ -0,0 +1,86 @@
+#-------------------------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
+#-------------------------------------------------------------------------------------------------------------
+
+FROM golang:1
+
+# Avoid warnings by switching to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+
+# This Dockerfile adds a non-root user with sudo access. Use the "remoteUser"
+# property in devcontainer.json to use it. On Linux, the container user's GID/UIDs
+# will be updated to match your local UID/GID (when using the dockerFile property).
+# See https://aka.ms/vscode-remote/containers/non-root-user for details.
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+# Configure apt, install packages and tools
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils dialog 2>&1 \
+    #
+    # Verify git, process tools, lsb-release (common in install instructions for CLIs) installed
+    && apt-get -y install git openssh-client zip vim less iproute2 procps lsb-release \
+    #
+    # SSL dependencies
+    && apt-get -y install apt-transport-https ca-certificates gnupg2 \
+    #
+    # Build Go tools w/module support
+    && mkdir -p /tmp/gotools \
+    && cd /tmp/gotools \
+    && GOPATH=/tmp/gotools GO111MODULE=on go get -v golang.org/x/tools/gopls@latest 2>&1 \
+    && GOPATH=/tmp/gotools GO111MODULE=on go get -v \
+        honnef.co/go/tools/...@latest \
+        golang.org/x/tools/cmd/gorename@latest \
+        golang.org/x/tools/cmd/goimports@latest \
+        golang.org/x/tools/cmd/guru@latest \
+        golang.org/x/lint/golint@latest \
+        github.com/mdempsky/gocode@latest \
+        github.com/cweill/gotests/...@latest \
+        github.com/haya14busa/goplay/cmd/goplay@latest \
+        github.com/sqs/goreturns@latest \
+        github.com/josharian/impl@latest \
+        github.com/davidrjenni/reftools/cmd/fillstruct@latest \
+        github.com/uudashr/gopkgs/v2/cmd/gopkgs@latest  \
+        github.com/ramya-rao-a/go-outline@latest  \
+        github.com/acroca/go-symbols@latest  \
+        github.com/godoctor/godoctor@latest  \
+        github.com/rogpeppe/godef@latest  \
+        github.com/zmb3/gogetdoc@latest \
+        github.com/fatih/gomodifytags@latest  \
+        github.com/mgechev/revive@latest  \
+        github.com/go-delve/delve/cmd/dlv@latest 2>&1 \
+    #
+    # Build Go tools w/o module support
+    && GOPATH=/tmp/gotools go get -v github.com/alecthomas/gometalinter 2>&1 \
+    #
+    # Build gocode-gomod
+    && GOPATH=/tmp/gotools go get -x -d github.com/stamblerre/gocode 2>&1 \
+    && GOPATH=/tmp/gotools go build -o gocode-gomod github.com/stamblerre/gocode \
+    #
+    # Install Go tools
+    && mv /tmp/gotools/bin/* /usr/local/bin/ \
+    && mv gocode-gomod /usr/local/bin/ \
+    #
+    # Install golangci-lint
+    && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin 2>&1 \
+    #
+    # Create a non-root user to use if preferred - see https://aka.ms/vscode-remote/containers/non-root-user.
+    && groupadd --gid $USER_GID $USERNAME \
+    && useradd -s /bin/bash --uid $USER_UID --gid $USER_GID -m $USERNAME \
+    # [Optional] Add sudo support
+    && apt-get install -y sudo \
+    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+    && chmod 0440 /etc/sudoers.d/$USERNAME \
+    #
+    # Clean up
+    && apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/* /tmp/gotools
+
+# Update this to "on" or "off" as appropriate
+ENV GO111MODULE=auto
+
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

.devcontainer/devcontainer.json

@@ -0,0 +1,33 @@
+// For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.117.1/containers/go
+{
+	"name": "Go",
+	"dockerFile": "Dockerfile",
+	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined", "-v", "${env:HOME}${env:USERPROFILE}/.aws:/root/.aws", "-v", "${env:HOME}${env:USERPROFILE}/.aws:/home/vscode/.aws" ],
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": { 
+		"terminal.integrated.shell.linux": "/bin/bash",
+		"go.gopath": "/go",
+	},
+
+	"containerEnv": {
+		"AWS_SDK_LOAD_CONFIG": "1", // enable SharedConfigEnable for fargate cli (https://docs.aws.amazon.com/sdk-for-go/api/aws/session/#hdr-Sessions_options_from_Shared_Config)
+	},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-vscode.go",
+		"eamodio.gitlens",
+		"donjayamanne.githistory",
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "go mod download",
+
+	// Uncomment to connect as a non-root user. See https://aka.ms/vscode-remote/containers/non-root.
+	// "remoteUser": "vscode"
+}

CONTRIBUTING.md

@@ -63,6 +63,25 @@ email and Google Hangouts at [email protected].
 - For cross-building for all supported platforms, run `make dist` which builds
   binaries for darwin (64-bit) and linux (Arm, 32-bit, 64-bit).
 
+## Developing using Docker
+
+### Minimum requirement
+
+1. Visual Studio Code
+2. Remote - Containers extension for Visual Studio Code
+3. Docker
+
+Clone the current repository.  Open the folder with VSCode Remote - Containers extension.
+
+Note: The remote container has *AWS_SDK_LOAD_CONFIG* environment variable set to use AWS CLI configuration.
+
+Open a terminal in VS Code to execute the cli.
+
+```console
+go run main.go --version
+```
+
+
 ## Licensing
 
 This project is released under the [Apache 2.0 license][apache].

Dockerfile

@@ -9,10 +9,11 @@ RUN go mod download
 
 ADD . /fargate
 RUN go build -ldflags="-s -w"
-RUN upx --brute fargate
+RUN upx --brute -o fargate fargatecli
 
 FROM alpine
 
 RUN apk add --no-cache ca-certificates
 
-COPY --from=0 /fargate/fargate /usr/local/bin/
+COPY --from=0 /fargate/fargate /usr/local/bin/fargate
+ENTRYPOINT [ "/usr/local/bin/fargate" ]

README.md

@@ -7,15 +7,47 @@
 
 [![fargate CLI screencast](http://img.youtube.com/vi/P6iY6ovhbfc/0.jpg)](http://www.youtube.com/watch?v=P6iY6ovhbfc)
 
+## Installation
+
+### Latest release builds
+
+Download and unzip specific platform releases from [Releases](https://github.com/awslabs/fargatecli/releases).
+
+### Latest changes (unstable)
+
+With Docker installed, run the following:
+
+### Windows
+
+```console
+docker build -t local/fargatecli https://github.com/awslabs/fargatecli.git
+docker run --rm -it -e "AWS_SDK_LOAD_CONFIG=1" -v %USERPROFILE%/.aws:/root/.aws -v %cd%:/aws -w /aws local/fargatecli --version
+```
+
+### Linux / MacOS
+```console
+docker build -t local/fargatecli https://github.com/awslabs/fargatecli.git
+docker run --rm -it -e "AWS_SDK_LOAD_CONFIG=1" -v $HOME/.aws:/root/.aws -v $PWD:/aws -w /aws local/fargatecli --version
+```
+
 ## Usage
 
 ### Configuration
 
 #### Region
 
 By default, fargate uses *us-east-1*. The CLI accepts a --region parameter and
-will honor *AWS_REGION* and *AWS_DEFAULT_REGION* environment settings. Note that
-specifying a region where all required services aren't available will return an
+will honor *AWS_REGION* and *AWS_DEFAULT_REGION* environment settings.
+
+The CLI also makes use of the AWS CLI SDK and supports the [Shared Config](https://docs.aws.amazon.com/sdk-for-go/api/aws/session/#hdr-Sessions_options_from_Shared_Config) of the [AWS CLI](https://aws.amazon.com/cli/).  If the *AWS_SDK_LOAD_CONFIG* environment variable is set to a truthy value the Session will be created from the configuration values from the shared config (`~/.aws/config`) and shared credentials (`~/.aws/credentials`) files.
+
+```console
+> aws configure #set credentials and region here
+...
+> set AWS_SDK_LOAD_CONFIG=1
+```
+
+Note that specifying a region where all required services aren't available will return an
 error.
 
 See the [Region Table][region-table] for a breakdown of what services are