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Add tailhist to start a websocket server showing bash history on port 1088

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This commit is contained in:
Jerome Petazzoni
2020-03-19 13:40:45 -05:00
parent c506038682
commit bfd63c16c6
3 changed files with 79 additions and 0 deletions
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28
prepare-vms/lib/commands.sh
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@@ -366,6 +366,34 @@ EOF
sudo systemctl start pinger"
}
_cmd tailhist "Install history viewer on port 1088"
_cmd_tailhist () {
TAG=$1
need_tag
pssh "
wget https://github.com/joewalnes/websocketd/releases/download/v0.3.0/websocketd-0.3.0_amd64.deb
sudo dpkg -i websocketd-0.3.0_amd64.deb
sudo mkdir -p /tmp/tailhist
sudo tee /root/tailhist.service <<EOF
[Unit]
Description=tailhist
[Install]
WantedBy=multi-user.target
[Service]
WorkingDirectory=/tmp/tailhist
ExecStart=/usr/bin/websocketd --port=1088 --staticdir=. sh -c \"tail -n +1 -f /home/docker/.history || echo 'Could not read history file. Perhaps you need to \\\"chmod +r .history\\\"?'\"
User=nobody
Group=nogroup
Restart=always
EOF
sudo systemctl enable /root/tailhist.service
sudo systemctl start tailhist"
pssh -I sudo tee /tmp/tailhist/index.html <lib/tailhist.html
}
_cmd opensg "Open the default security group to ALL ingress traffic"
_cmd_opensg() {
need_infra $1

9
prepare-vms/lib/postprep.py
View File

@@ -65,6 +65,15 @@ system("""sudo -u docker tee -a /home/docker/.bashrc <<SQRL
export PS1='\e[1m\e[31m[{}] \e[32m(\\$(docker-prompt)) \e[34m\u@\h\e[35m \w\e[0m\n$ '
SQRL""".format(ipv4))
# Bigger history, in a different file, and saved before executing each command
system("""sudo -u docker tee -a /home/docker/.bashrc <<SQRL
export HISTSIZE=9999
export HISTFILESIZE=9999
shopt -s histappend
trap 'history -a' DEBUG
export HISTFILE=~/.history
SQRL""")
# Custom .vimrc
system("""sudo -u docker tee /home/docker/.vimrc <<SQRL
syntax on

42
prepare-vms/lib/tailhist.html Normal file
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@@ -0,0 +1,42 @@
<!DOCTYPE html>
<html>
<head>
<title>bash history</title>
<style>
#log {
font: bold 24px courier;
}
#log div:last-child {
background: yellow;
}
</style>
</head>
<body>
<div id="log"></div>
<script>
var ws = new WebSocket('ws://' + (location.host ? location.host : "localhost:8080") + "/");
var log = document.getElementById('log');
var echo = function(text) {
var line = document.createElement('div');
line.textContent = text;
log.appendChild(line);
line.scrollIntoView();
}
ws.onopen = function() {
document.body.style.backgroundColor = '#cfc';
};
ws.onclose = function() {
document.body.style.backgroundColor = '#fcc';
echo("Disconnected from server. Try to reload this page?");
};
ws.onmessage = function(event) {
echo(event.data);
};
</script>
</body>
</html>