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MOSIP Helm Charts

Overview

Helm charts for all MOSIP services. The charts here are published in gh-pages branch of this repo. To install the charts add the respository as below:

helm repo add mosip https://mosip.github.io/mosip-helm

Publish charts manually

  • In the branch where changes have been made run the following from mosip-helm folder
helm package charts/<chart name>
  • You will see packaged .tgz files created in current directory.
  • Copy the .tgz files to gh-pages branch of mosip-helm repo. You can clone another copy of the repo and check out gh-pages branch to achieve this.
  • Run
./publish.sh

Helm lint

Helm Chart testing

Install chart-testing tool

Run chart lint on local

  • Run the below command to test linting for all charts. 
    CONFIG_FILE='.github/chart-testing-config.yaml'
CHART_DIR='charts'
TARGET_ORIGIN='origin'
TARGET_BRANCH='gh-pages'
LOG_FILE="./helm-lint-$CHART_DIR.log"

ct lint --config=$CONFIG_FILE \
--chart-dirs=$CHART_DIR \
--remote=$TARGET_ORIGIN \
--target-branch=$TARGET_BRANCH | tee -a "$LOG_FILE"
  • Run the below command to test linting for a specific charts. 
    CONFIG_FILE='.github/chart-testing-config.yaml'
CHART_DIR='charts/admin-hotlist'
TARGET_ORIGIN='origin'
TARGET_BRANCH='gh-pages'
LOG_FILE="./helm-lint-$( date +"%d-%m-%Y-%H-%M-%S" ).log"

ct lint --config=$CONFIG_FILE \
--charts=$CHART_DIR \
--remote=$TARGET_ORIGIN \
--target-branch=$TARGET_BRANCH | tee -a "$LOG_FILE"

Run Health Check for helm charts on local

  • Create a file with the name list.txt consisting of a list of charts names along with the path. 
    ls -d charts/* > list.txt;
  • Create yaml directory for all charts present in list.txt 
    while read -r chart; do
  echo -e "\nCHART: $chart\n";

  yaml_file='./chart-template.yaml'
  chart_name=$( echo $chart | awk -F / '{print $2}' );
  mkdir "$chart_name-yaml";

  helm template $chart > $yaml_file
  last_line=$( cat -n $yaml_file| tail -n 1 | awk '{print $1}' )
  line_nos="$( cat -n $yaml_file | awk '/---/{print $1}' ) $last_line"
  start_of_file=0

  for line in $line_nos; do
    if [[ $line -eq 1 ]]; then
      start_of_file=$line;
      continue;
    fi

    head_line=$(( line-1 ));
    tail_line=$(( line-start_of_file ));

    if [[ $line -eq $last_line ]]; then
      head_line=$line;
      tail_line=$(( line-start_of_file+1 ));
    fi

    start_of_file=$line;
    # echo "HEAD LINE: $head_line, TAIL LINE: $tail_line";
    
    yaml_type=$( head -n +$head_line $yaml_file | tail -n $tail_line | grep -c -E "kind\:\ Deployment|kind\:\ StatefulSet" || true );  # used "true" to return exit code as 0
    # echo "YAML TYPE: $yaml_type";
    if [[ "$yaml_type" -eq 0 ]]; then
       # echo "if YAML TYPE: $yaml_type";
       continue;
    fi

    filename=$( head -n +$head_line $yaml_file | tail -n $tail_line | awk -F '/' '/# Source/{print $3}' );
    echo "$filename";
    head -n +$head_line $yaml_file | tail -n $tail_line > "$chart_name-yaml/$filename";
  done
done < ./list.txt
  • Run health check validate for charts present in list.txt file. 
    STOP=0
while read -r chart; do
  if [[ $STOP -gt 0 ]]; then
    echo "FAILED !!!";
    break;
  fi
  echo -e "\n\nCHART: $chart\n";

  chart_name=$( echo $chart | awk -F / '{print $2}' );
  list=$( ls $chart_name-yaml );

  echo -e "YAML LIST :";
  echo -e "$list\n"

  for yaml in $list; do
    echo -e "YAML : $yaml";
    yamale -s .github/health-check-schema.yaml "$chart_name-yaml/$yaml" --no-strict
    if [[ $? -gt 0 ]]; then
      STOP=1;
      break;
    fi
  done

done < ./list.txt

Troubleshooting

  • Below are commands used to perform the following operations for a YAML file

    • Remove spaces from the end of the line
    • Remove spaces after ": "
    • Remove spaces after "- "
    • Remove multiple empty lines to only one line
    • Remove empty lines from the beginning & end of the file.
    sed -i 's/\s*$//g' <path/to/yaml/file>                                     ## To remove spaces from end of line
sed -i 's/:\s\s*/: /g' <path/to/yaml/file>                                 ## To remove spaces after ": "
sed -i 's/-\s\s*/- /g' <path/to/yaml/file>                                 ## To remove spaces after "- "
sed -i -e '/./,$!d' -e :a -e '/^\n*$/{$d;N;ba' -e '}' <path/to/yaml/file>  ## To remove empty lines from beginning and end ( if end_lines_empty > 1 )
sed -i '/^$/N;/^\n$/D' <path/to/yaml/file>                                 ## To remove multiple empty lines to only one line

  • Below are commands used to perform the following operations for values.yaml & for Chart.yaml file

    • Remove spaces from the end of the line
    • Remove spaces after ": "
    • Remove spaces after "- "
    • Remove multiple empty lines to only one line
    • Remove empty lines from the beginning & end of the file.
    #charts="charts/mosip-file-server charts/admin-ui charts/admin-service";
charts="$( ls -d charts/* )"

for chart in $charts; do
  echo "CHART: $chart";
  for yaml_file in values Chart; do
    sed -i 's/\s*$//g'     "$chart/$yaml_file.yaml";
    sed -i 's/:\s\s*/: /g' "$chart/$yaml_file.yaml";
    sed -i 's/-\s\s*/- /g' "$chart/$yaml_file.yaml";
    sed -i -e '/./,$!d' -e :a -e '/^\n*$/{$d;N;ba' -e '}'  "$chart/$yaml_file.yaml";
    sed -i '/^$/N;/^\n$/D' "$chart/$yaml_file.yaml";
  done
done

  • Remove files/directories

    rm -rf *-yaml chart-template.yaml list.txt

License

This project is licensed under the terms of Mozilla Public License 2.0.