Initial release

.bashrc

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+    # General Aliases
+    alias apk='apk --progress'
+    alias ll="ls -ltan"
+
+    alias hosts='cat /etc/hosts'
+    alias ..="cd .."
+    alias ...="cd ../.."
+    alias ....="cd ../../.."
+    alias untar="tar xzvkf"
+    alias mv="mv -nv"
+    alias cp="cp -i"
+    alias ip4="ip -4 addr"
+    alias ip6="ip -6 addr"
+
+    COL_YEL="\[\e[1;33m\]"
+    COL_GRA="\[\e[0;37m\]"
+    COL_WHI="\[\e[1;37m\]"
+    COL_GRE="\[\e[1;32m\]"
+    COL_RED="\[\e[1;31m\]"
+
+    # Bash Prompt
+    if test "$UID" -eq 0 ; then
+        _COL_USER=$COL_RED
+        _p=" #"
+    else
+        _COL_USER=$COL_GRE
+        _p=">"
+    fi
+    COLORIZED_PROMPT="${_COL_USER}\u${COL_WHI}@${COL_YEL}\h${COL_WHI}:\w${_p} \[\e[m\]"
+    case $TERM in
+        *term | rxvt | screen )
+            PS1="${COLORIZED_PROMPT}\[\e]0;\u@\h:\w\007\]" ;;
+        linux )
+            PS1="${COLORIZED_PROMPT}" ;;
+        * ) 
+            PS1="\u@\h:\w${_p} " ;;
+    esac

Dockerfile

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+FROM alpine:latest
+LABEL maintainer "Steven Iveson <[email protected]>"
+COPY Dockerfile /Dockerfile
+
+RUN apk add -U -v nfs-utils bash iproute2 && \
+    rm -rf /var/cache/apk/* /tmp/* && \
+    rm -f /sbin/halt /sbin/poweroff /sbin/reboot && \
+    mkdir -p /var/lib/nfs/rpc_pipefs && \
+    mkdir -p /var/lib/nfs/v4recovery && \
+    echo "rpc_pipefs    /var/lib/nfs/rpc_pipefs rpc_pipefs      defaults        0       0" >> /etc/fstab && \
+    echo "nfsd  /proc/fs/nfsd   nfsd    defaults        0       0" >> /etc/fstab
+
+COPY confd-binary /usr/bin/confd
+COPY confd/confd.toml /etc/confd/confd.toml
+COPY confd/toml/* /etc/confd/conf.d/
+COPY confd/tmpl/* /etc/confd/templates/
+
+COPY nfsd.sh /usr/bin/nfsd.sh
+COPY .bashrc /root/.bashrc
+
+RUN chmod +x /usr/bin/nfsd.sh /usr/bin/confd
+
+ENTRYPOINT ["/usr/bin/nfsd.sh"]

confd/tmpl/exports.tmpl

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+{{getenv "SHARED_DIRECTORY"}} *(rw,fsid=0,async,no_subtree_check,no_auth_nlm,insecure,no_root_squash)

confd/toml/exports.toml

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+[template]
+src = "exports.tmpl"
+dest = "/etc/exports"
+mode = "0644"
+keys = [
+    "SHARED_DIRECTORY",
+]

nfsd.sh

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+#!/bin/bash
+
+# Make sure we react to these signals by running stop() when we see them - for clean shutdown
+# And then exiting
+trap "stop; exit 0;" SIGTERM SIGINT 
+
+stop()
+{
+  # We're here because we've seen SIGTERM, likely via a Docker stop command or similar
+  # Let's shutdown cleanly
+  echo "SIGTERM caught, terminating NFS process(es)..."
+  /usr/sbin/exportfs -ua 
+  pid1=$(pidof rpc.nfsd)
+  pid2=$(pidof rpc.mountd)
+  kill -TERM $pid1 $pid2 > /dev/null 2>&1
+  echo "Terminated."
+  exit
+}
+
+if [ -z "$SHARED_DIRECTORY" ]; then
+  echo "The SHARED_DIRECTORY environment variable is null, exiting..."
+  exit 1
+fi
+
+# This loop runs till until we've started up successfully
+while true; do
+
+  # Check if NFS is running by recording it's PID (if it's not running $pid will be null):
+  pid=$(pidof rpc.mountd)
+
+  # If $pid is null, do this to start or restart NFS:
+  while [ -z "$pid" ]; do
+    echo "Starting Confd population of files..."
+    /usr/bin/confd -version
+    /usr/bin/confd -onetime
+    echo ""
+    echo "Displaying /etc/exports contents..."
+    cat /etc/exports
+    echo ""
+
+    # Only required if v3 will be used
+    # echo "Starting rpcbind..."
+    #/sbin/rpcbind -w
+    # echo "Displaying rpcbind status..."
+    #/sbin/rpcinfo
+
+    # Only required if v3 will be used
+    # /usr/sbin/rpc.idmapd
+    # /usr/sbin/rpc.gssd -v
+    # /usr/sbin/rpc.statd
+
+    echo "Starting NFS in the background..."
+    /usr/sbin/rpc.nfsd --debug 8 --no-udp --no-nfs-version 2 --no-nfs-version 3
+    echo "Exporting File System..."
+    /usr/sbin/exportfs -rv 
+    echo "Starting Mountd in the background..."
+    /usr/sbin/rpc.mountd --debug all --no-udp --no-nfs-version 2 --no-nfs-version 3
+# --exports-file /etc/exports
+
+    # Check if NFS is now running by recording it's PID (if it's not running $pid will be null):
+    pid=$(pidof rpc.mountd)
+
+    # If $pid is null, startup failed; log the fact and sleep for 2s
+    # We'll then automatically loop through and try again
+    if [ -z "$pid" ]; then
+      echo "Startup of NFS failed, sleeping for 2s, then retrying..."
+      sleep 2
+    fi
+
+  done
+
+  # Break this outer loop once we've started up successfully
+  # Otherwise, we'll silently restart and Docker won't know
+  break
+
+done
+
+while true; do
+
+  # Check if NFS is STILL running by recording it's PID (if it's not running $pid will be null):
+  pid=$(pidof rpc.mountd)
+  # If it is not, lets kill our PID1 process (this script) by breaking out of this while loop:
+  # This ensures Docker observes the failure and handles it as necessary
+  if [ -z "$pid" ]; then
+    echo "NFS has failed, exiting, so Docker can restart the container..."
+    break
+  fi
+
+  # If it is, give the CPU a rest
+  sleep 1
+
+done
+
+sleep 1
+exit 1