Register running docker containers and vagrant vms into ETCD and reads them out into ENVironment vars.

etcd-to-env.sh

#!/bin/bash

# this script tries to turn your etcd into env vars

[[ ! $EHOST ]] && EHOST="$(hostname -I | awk '{ print $1 }')"
[[ ! $EPORT ]] && EPORT=4001
[[ ! $ETCD  ]] && ETCD="http://${EHOST}:$EPORT"

ETCD_FILE="/tmp/$(date +%s).etcd.json"
wget "$ETCD/v2/keys/?recursive=true" -O $ETCD_FILE

ENV=$(cat $ETCD_FILE | grep '"[^"]\+","value":"[^"]\+"' -o | sed -e 's/"value"://g' -e 's/"//g' -e 's/^\///g' -e 's/\//_/' -e 's/,/=/' -e 's/^\([^=]\+\)/\U\1/' -e 's/^/export /g')

eval "$ENV"

echo "$ENV"

register-docker-to-etcd.sh

#!/bin/bash

# This scripts tries to catalog running docker containers into etcd

[[ ! $EHOST ]] && EHOST="$(hostname -I | awk '{ print $2 }')"
[[ ! $EPORT ]] && EPORT=4001
[[ ! $ETCD  ]] && ETCD="http://${EHOST}:${EPORT}"

IP=$(hostname -I | awk '{ print $2 }')
HOST=$IP # should resolve this sometime 

for CONTAINER in $(docker ps | tail -n+2 | awk '{ print $1 }'); do

    # the name is from IMAGE column, as: vendor/name:tag
    # what if -name is specified?
    BOX=$(docker ps | grep $CONTAINER | awk '{ print $2 }' | sed -e 's/^.*\///' -e 's/:.*$//')

    curl -L "$ETCD/v2/keys/$BOX/ip" -d value="$IP" -X PUT
    curl -L "$ETCD/v2/keys/$BOX/host" -d value="$HOST" -X PUT

    PORTS=$(docker ps | grep $CONTAINER | grep '[0-9]\+->[0-9]\+' -o)
    PORT=""
    for PORT in $PORTS; do
        DEST=$(echo ${PORT//->/ } | awk '{ print $1 }')
        ORIG=$(echo ${PORT//->/ } | awk '{ print $2 }')
        # last non 22 port will be used as main
        # must improve this
        [[ $ORIG != "22" ]] && PORT=$DEST
    done
    curl -L "$ETCD/v2/keys/$BOX/port" -d value="$PORT" -X PUT


    curl -L "$ETCD/v2/keys/$BOX/url" -d value="http://$IP:$PORT" -X PUT
    curl -L "$ETCD/v2/keys/$BOX/timestamp" -d value="$(date +%s)" -X PUT

done

register-vagrant-to-etcd.sh

#!/bin/bash

[[ ! $EHOST ]] && EHOST="$(hostname -I | awk '{ print $2 }')"
[[ ! $ETCD  ]] && ETCD="http://${EHOST}:4001"

echo $PWD

for BOX in $(ps aux | grep VBoxHeadless | grep -o "comment [a-zA-Z-]\+_default" | awk '{print $2}' | grep -o '^[^_]\+'); do
    printf "\n"
    echo "$BOX"

    DIR=$(find ~/ -name $BOX -type d -print) # enter first folder in user home with this name

    echo "$DIR"

    cd $DIR

    TBOX=$(cat Vagrantfile | grep -o '#name:.*') ## ??
    [[ $TBOX ]] && BOX=$(TBOX/name:/)

    # grep private_network ip from vagrantfile
    IP=$(cat Vagrantfile | grep '"\?:\?private_network"\?, \?"\?:\?ip:\?"\? \?"\([^"]\+\)"' -o | awk '{print $3}')
    IP=${IP:1:-1}
    HOST=$IP # resolv?
    curl -L "$ETCD/v2/keys/$BOX/ip" -d value="$IP" -X PUT
    curl -L "$ETCD/v2/keys/$BOX/host" -d value="$HOST" -X PUT

    PORTS=$(cat Vagrantfile | grep ':forwarded_port, host: \([0-9]\+\), guest: \([0-9]\+\)' -o | awk '{ print $3 $5 }')
    for PORT in $PORTS; do
        DEST=$(echo ${PORT//,/ } | awk '{ print $1 }')
        ORIG=$(echo ${PORT//,/ } | awk '{ print $2 }')
        curl -L "$ETCD/v2/keys/$BOX/port_$ORIG" -d value="$DEST" -X PUT
    done

    PORT=$(echo ${PORTS//,/ } | awk '{ print $2 }') # assume first forwarded port as main port
    curl -L "$ETCD/v2/keys/$BOX/port" -d value="$PORT" -X PUT

    curl -L "$ETCD/v2/keys/$BOX/url" -d value="http://$IP:$PORT" -X PUT
    curl -L "$ETCD/v2/keys/$BOX/timestamp" -d value="$(date +%s)" -X PUT
done