Istio Support

[mickmcgrath13]

Add istioctl support

Ops repo environments should be able to specify:

operations/
  - env1/
    - istio/
      - bitops.config.yaml
      - profiles/ # <- these should be yaml files of `kind: IstioOperator`
        - p1.yaml

Items

• [ ] install istioctl into bitops
• [ ] create new plugin or scripts/istio directory
• [ ] create bitops schema
• [ ] create deploy script

Deploy script

it should first check if istio is installed because it runs different commands for upgrade and install:

#####
##### check if istio is installed
#####
ISTIOCTL="istioctl --kubeconfig=${kubeconfig} --istioNamespace=${namespace}"
ISTIO_INSTALL_COMMAND="$ISTIOCTL"
NO_ISTIO_PODS_STRING="no running Istio pods"
ISTIO_VERSION_RESPONSE="$($ISTIOCTL version)"
set +e
ISTIO_NOT_INSTALLED="$(echo "$ISTIO_VERSION_RESPONSE" | grep "$NO_ISTIO_PODS_STRING")"
set -e

if [ -n "$ISTIO_NOT_INSTALLED" ]; then
  echo "istio not installed, installing..."
  ISTIO_INSTALL_COMMAND="$ISTIO_INSTALL_COMMAND install"
else
  echo "istio installed, upgrading..."
  ISTIO_INSTALL_COMMAND="$ISTIO_INSTALL_COMMAND upgrade"
fi
# auto confirm
ISTIO_INSTALL_COMMAND="${ISTIO_INSTALL_COMMAND} -y"

# create namespace if not exists

It should build up to a command like this:

istioctl \
--kubeconfig=${kubeconfig} \
--istioNamespace=${namespace} \
-f $ISTIO_ROOT/profiles/a.yaml \
-f $ISTIO_ROOT/profiles/b.yaml