128 lines
4.6 KiB
Bash
Executable File
128 lines
4.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
source "$(dirname $0)/utils.sh"
|
|
init
|
|
|
|
# download awk script to hack terraform-docs
|
|
TERRAFORM_AWK="/tmp/terraform-docs.awk"
|
|
curl -Lso ${TERRAFORM_AWK} "https://raw.githubusercontent.com/cloudposse/build-harness/master/bin/terraform-docs.awk"
|
|
|
|
## root README generator
|
|
# only keep current README from begining to "Monitors summary" section (delete monitors list)
|
|
sed -i '/### Monitors summary ###/q' README.md
|
|
# add a newline after listing section
|
|
echo >> README.md
|
|
# loop over all ready monitors sets on the repo
|
|
for path in $(find -mindepth 1 -type d ! -path '*/.*' ! -path './scripts*' -print | sort -fdbi); do
|
|
# split path in directories
|
|
directories=($(list_dirs $path))
|
|
# loop over directories in path
|
|
for i in $(seq 1 $((${#directories[@]}-1))); do
|
|
## add tabulation for every subdirectory
|
|
echo -en "\t" >> README.md
|
|
done
|
|
# add link to list of monitors sets
|
|
echo -en "- [$(basename ${path})](https://git.fr.clara.net/claranet/pt-monitoring/projects/datadog/terraform/monitors/tree/master/" >> README.md
|
|
# add path to link
|
|
for directory in "${directories[@]}"; do
|
|
echo -en "${directory}/" >> README.md
|
|
done
|
|
# end of markdown link
|
|
echo ")" >> README.md
|
|
done
|
|
|
|
# this is the pattern from where custom information is saved to be restored
|
|
PATTERN_DOC="Related documentation"
|
|
|
|
# loop over every monitors set readme
|
|
for path in $(find "$(get_scope ${1:-})" -name 'monitors-*.tf' -print | sort -fdbi); do
|
|
cd $(dirname $path)
|
|
EXIST=0
|
|
if [ -f README.md ]; then
|
|
mv README.md README.md.bak
|
|
EXIST=1
|
|
fi
|
|
# module name from path
|
|
module=$(list_dirs $(dirname ${path}))
|
|
# module name with space as separator
|
|
module_space=${module^^}
|
|
# module name with dash as separator
|
|
module_dash=${module//[ ]/-}
|
|
# module name with slash as separator
|
|
module_slash=${module//[ ]/\/}
|
|
|
|
# (re)generate README from scratch
|
|
cat <<EOF > README.md
|
|
# ${module_space} DataDog monitors
|
|
|
|
## How to use this module
|
|
|
|
\`\`\`
|
|
module "datadog-monitors-${module_dash}" {
|
|
source = "git::ssh://git@git.fr.clara.net/claranet/pt-monitoring/projects/datadog/terraform/monitors.git//${module_slash}?ref={revision}"
|
|
|
|
environment = var.environment
|
|
message = module.datadog-message-alerting.alerting-message
|
|
EOF
|
|
|
|
# if README already exist
|
|
if [[ $EXIST -eq 1 ]]; then
|
|
# take all custom config in declaration module example after "message" and until the end of block to restore it
|
|
sed -n '/^[[:space:]]*message[[:space:]]*=.*/,/^\}/p' README.md.bak | tail -n +2 | head -n -1 >> README.md
|
|
fi
|
|
|
|
# close block and generate the next until list of monitors
|
|
cat <<EOF >> README.md
|
|
}
|
|
|
|
\`\`\`
|
|
|
|
## Purpose
|
|
|
|
Creates DataDog monitors with the following checks:
|
|
|
|
EOF
|
|
SAVEIFS=$IFS
|
|
# allow looping over strings which contains spaces
|
|
IFS=$(echo -en "\n\b")
|
|
# loop over each monitor in the set
|
|
for match in $(grep -E ^[[:space:]]+name[[:space:]]+= $(basename ${path}) | sort -fdbi); do
|
|
## TODO rewrite this (and other things) using:
|
|
## terraform-config-inspect --json| jq -C
|
|
## awk '1;/^\}/{exit}' monitors-ingress.tf # with line numer of each resource
|
|
# parse monitor's name
|
|
name=$(get_name "${match}")
|
|
# search if monitor is enabled
|
|
[[ "$(grep -B1 "$name" $(basename ${path}) | grep -q enabled)" =~ ^[[:space:]]*count[[:space:]]*=[[:space:]]*var\.([a-z0-9_]*_enabled) ]] &&
|
|
# add "disabled by default" mention if not enabled
|
|
if ! grep -A4 "${BASH_REMATCH[1]}" inputs.tf | grep default.*true; then
|
|
name="${name} (disabled by default)"
|
|
fi
|
|
# monitor name element to the list and replace "could reach" pattern to "forecast" for better naming
|
|
echo "- ${name/could reach/forecast}" >> README.md
|
|
done
|
|
IFS=$SAVEIFS
|
|
echo >> README.md
|
|
# hack for terraform-docs with terraform 0.12 / HCL2 support
|
|
tmp_tf=$(mktemp -d)
|
|
awk -f ${TERRAFORM_AWK} ./*.tf > ${tmp_tf}/main.tf
|
|
# auto generate terraform docs (inputs and outputs)
|
|
terraform-docs --with-aggregate-type-defaults md table ${tmp_tf}/ >> README.md
|
|
rm -fr ${tmp_tf}
|
|
# if README does not exist
|
|
if [[ $EXIST -eq 0 ]]; then
|
|
# Simply add empty documentation section
|
|
cat <<EOF >> README.md
|
|
## ${PATTERN_DOC}
|
|
|
|
EOF
|
|
else
|
|
# else restore the custom information saved before
|
|
grep -Pzo --color=never ".*${PATTERN_DOC}(.*\n)*" README.md.bak | head -n -1 >> README.md
|
|
rm README.md.bak
|
|
fi
|
|
# force unix format (I don't know why for now but you never know)
|
|
dos2unix README.md 2> /dev/null
|
|
cd - >> /dev/null
|
|
done
|