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Code Issues Releases Wiki Activity

needed libcgi-fast-perl and chown log files

This commit is contained in:
mike 2016-01-13 23:55:45 -05:00
parent 6d6f3ea391
commit 8932aaf4ef
2 changed files with 9 additions and 17 deletions
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19
management/daemon.py
View File

@ -514,33 +514,20 @@ def munin(filename=""):
@authorized_personnel_only
def munin_cgi(filename=""):
""" Relay munin cgi dynazoom requests
/usr/lib/munin/cgi/munin-cgi-graph is a perl cgi script in the munin package
that is responsible for generating binary png images _and_ associated HTTP
headers based on parameters in the requesting URL. All output is written
to stdout which munin_cgi splits into response headers and binary response
data.
munin-cgi-graph reads environment variables as well as passed input to determin
munin-cgi-graph reads environment variables as well as passed input to determine
what it should do. It expects a path to be in the env-var PATH_INFO, and a
querystring to be in the env-var QUERY_STRING as well as passed as input to the
command.
munin-cgi-graph has several failure modes. Some write HTTP 404 Status headers
and others return nonzero exit codes. munin_cgi has some basic handling, and
logs errors to app.logger.
= Reasoning =
munin-cgi-graph has several failure modes. Some write HTTP Status headers and
others return nonzero exit codes.
Situating munin_cgi between the user-agent and munin-cgi-graph enables keeping
the cgi script behind mailinabox's auth mechanisms and avoids additional
support infrastructure like spawn-fcgi.
= Configuration =
A single configuration change is all that is required to enable the
functionality of munin_cgi. In the munin.conf file (/etc/munin/munin.conf) add
the following line above your server listings:
`cgiurl_graph /admin/munin/cgi-graph`
This will tell munin to override the default path for dynazoom requests.
"""
COMMAND = 'su - munin --preserve-environment --shell=/bin/bash -c "/usr/lib/munin/cgi/munin-cgi-graph \'%s\'"'

7
setup/munin.sh
View File

@ -7,7 +7,8 @@ source /etc/mailinabox.conf # load global vars
# install Munin
echo "Installing Munin (system monitoring)..."
apt_install munin munin-node
apt_install munin munin-node libcgi-fast-perl
# libcgi-fast-perl is needed by /usr/lib/munin/cgi/munin-cgi-graph
# edit config
cat > /etc/munin/munin.conf <<EOF;
@ -32,6 +33,10 @@ contact.admin.command mail -s "Munin notification ${var:host}" administrator@$PR
contact.admin.always_send warning critical
EOF
# The Debian installer touches these files and chowns them to www-data:adm for use with spawn-fcgi
chown munin. /var/log/munin/munin-cgi-html.log
chown munin. /var/log/munin/munin-cgi-graph.log
# ensure munin-node knows the name of this machine
tools/editconf.py /etc/munin/munin-node.conf -s \
host_name=$PRIMARY_HOSTNAME