Dockerfile

FROM golang:alpine

RUN echo http://nl.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories  

# build/code
RUN apk add --no-cache build-base git bash bash-completion ncurses vim tmux jq

# network
RUN apk add --no-cache bind-tools iputils tcptraceroute busybox-extras tcpdump curl wget nmap tcpflow iftop net-tools \
                       mtr netcat-openbsd bridge-utils iperf ngrep openldap-clients \
                       && go install github.com/rs/dnstrace@latest

# certificates
RUN apk add --no-cache ca-certificates openssl

# processes/io
RUN apk add --no-cache htop atop strace iotop sysstat ltrace ncdu logrotate hdparm pciutils psmisc tree pv

# kubectl
RUN curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" \
    && chmod +x ./kubectl \
    && mv ./kubectl /usr/local/bin/kubectl

# clusterctl
RUN curl -L https://github.com/kubernetes-sigs/cluster-api/releases/latest/download/clusterctl-linux-amd64 -o clusterctl \
    && chmod +x ./clusterctl \
    && mv ./clusterctl /usr/local/bin/clusterctl

# argocd
RUN curl -L https://github.com/argoproj/argo-cd/releases/latest/download/argocd-linux-amd64 -o argocd \
    && chmod +x ./argocd \
    && mv ./argocd /usr/local/bin/argocd


CMD [ "bash" ]