update scale nvmet script, implement unsupported deleteStrategy

Signed-off-by: Travis Glenn Hansen <travisghansen@yahoo.com>

README.md

@@ -188,8 +188,10 @@ node:
 and continue your democratic installation as usuall with other iscsi drivers.
 
 #### Privileged Namespace
+
 democratic-csi requires privileged access to the nodes, so the namespace should allow for privileged pods. One way of doing it is via [namespace labels](https://kubernetes.io/docs/tasks/configure-pod-container/enforce-standards-namespace-labels/).
 Add the followin label to the democratic-csi installation namespace `pod-security.kubernetes.io/enforce=privileged`
+
 ```
 kubectl label --overwrite namespace democratic-csi pod-security.kubernetes.io/enforce=privileged
 ```
@@ -648,12 +650,6 @@ Copy the `contrib/freenas-provisioner-to-democratic-csi.sh` script from the
 project to your workstation, read the script in detail, and edit the variables
 to your needs to start migrating!
 
-# Sponsors
-
-A special shout out to the wonderful sponsors of the project!
-
-[![ixSystems](https://www.ixsystems.com/wp-content/uploads/2021/06/ix_logo_200x47.png "ixSystems")](http://ixsystems.com/)
-
 # Related
 
 - https://github.com/nmaupu/freenas-provisioner

contrib/scale-nvmet-start.sh

@@ -17,25 +17,60 @@ SCRIPTDIR="$(
 cd "${SCRIPTDIR}"
 
 : "${NVMETCONFIG:="${SCRIPTDIR}/nvmet-config.json"}"
+: "${NVMETVENV:="${SCRIPTDIR}/nvmet-venv"}"
 
 export PATH=${HOME}/.local/bin:${PATH}
 
-modules=()
+main() {
-modules+=("nvmet")
-modules+=("nvmet-fc")
-modules+=("nvmet-rdma")
-modules+=("nvmet-tcp")
 
-for module in "${modules[@]}"; do
+  kernel_modules
-  modprobe "${module}"
+  nvmetcli ls &>/dev/null || {
-done
+    setup_venv
-
+    install_nvmetcli
-which nvmetcli &>/dev/null || {
-  which pip &>/dev/null || {
-    wget -O get-pip.py https://bootstrap.pypa.io/get-pip.py
-    python get-pip.py --user
-    rm get-pip.py
   }
+  nvmetcli_restore
+
+}
+
+kernel_modules() {
+
+  modules=()
+  modules+=("nvmet")
+  modules+=("nvmet-fc")
+  modules+=("nvmet-rdma")
+  modules+=("nvmet-tcp")
+
+  for module in "${modules[@]}"; do
+    modprobe "${module}"
+  done
+
+}
+
+setup_venv() {
+
+  rm -rf ${NVMETVENV}
+  python -m venv ${NVMETVENV} --without-pip --system-site-packages
+  activate_venv
+  curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+  python get-pip.py
+  rm get-pip.py
+  deactivate_venv
+
+}
+
+activate_venv() {
+
+  . ${NVMETVENV}/bin/activate
+
+}
+
+deactivate_venv() {
+
+  deactivate
+
+}
+
+install_nvmetcli() {
 
   if [[ ! -d nvmetcli ]]; then
     git clone git://git.infradead.org/users/hch/nvmetcli.git
@@ -43,19 +78,31 @@ which nvmetcli &>/dev/null || {
 
   cd nvmetcli
 
-  # install to root home dir
+  activate_venv
-  python3 setup.py install --user
 
   # install to root home dir
-  pip install configshell_fb --user
+  python3 setup.py install --install-scripts=${HOME}/.local/bin
+
+  # install to root home dir
+  pip install configshell_fb
 
   # remove source
   cd "${SCRIPTDIR}"
   rm -rf nvmetcli
+
+  deactivate_venv
+
 }
 
-cd "${SCRIPTDIR}"
+nvmetcli_restore() {
-nvmetcli restore "${NVMETCONFIG}"
 
-touch /var/run/nvmet-config-loaded
+  activate_venv
-chmod +r /var/run/nvmet-config-loaded
+  cd "${SCRIPTDIR}"
+  nvmetcli restore "${NVMETCONFIG}"
+  deactivate_venv
+  touch /var/run/nvmet-config-loaded
+  chmod +r /var/run/nvmet-config-loaded
+
+}
+
+main

examples/freenas-api-iscsi.yaml

@@ -68,6 +68,8 @@ iscsi:
   # add as many as needed
   targetGroups:
     # get the correct ID from the "portal" section in the UI
+    # https://github.com/democratic-csi/democratic-csi/issues/302
+    # NOTE: the ID in the UI does NOT always match the ID in the DB, you must use the DB value
     - targetGroupPortalGroup: 1
       # get the correct ID from the "initiators" section in the UI
       targetGroupInitiatorGroup: 1

examples/freenas-iscsi.yaml

@@ -77,6 +77,8 @@ iscsi:
   # add as many as needed
   targetGroups:
     # get the correct ID from the "portal" section in the UI
+    # https://github.com/democratic-csi/democratic-csi/issues/302
+    # NOTE: the ID in the UI does NOT always match the ID in the DB, you must use the DB value
     - targetGroupPortalGroup: 1
       # get the correct ID from the "initiators" section in the UI
       targetGroupInitiatorGroup: 1

examples/private.yaml

@@ -14,6 +14,7 @@ _private:
         #driver: kubernetes
 
       # THIS IS UNSUPPORTED, BAD THINGS WILL HAPPEN IF NOT CONFIGURED PROPERLY
+      # https://github.com/democratic-csi/democratic-csi/issues/289
       #
       # note the volume length must *always* be the same for every call for the same volume by the CO
       # the length must NOT execeed 128 characters
@@ -21,6 +22,16 @@ _private:
       # must only contain alphnumeric characters or `-` or `_`
       idTemplate: "{{ parameters.[csi.storage.k8s.io/pvc/namespace] }}-{{ parameters.[csi.storage.k8s.io/pvc/name] }}"
 
+      # THIS IS UNSUPPORTED, BAD THINGS WILL HAPPEN IF NOT CONFIGURED PROPERLY
+      # https://github.com/democratic-csi/democratic-csi/issues/289
+      #
+      # in order for this to behave sanely you *MUST* set consistent templates for
+      # share names/assets (ie: nfs/iscsi/etc) and the `idTemplate` above
+      #
+      # setting to retain results in noop delete opertions (both shares where applicable and volumes remain intact)
+      # delete|retain
+      deleteStrategy: retain
+
       # if set, this hash is applied *after* the templating above
       idHash:
         strategy: crc16

examples/zfs-generic-nvmeof.yaml

@@ -65,6 +65,7 @@ nvmeof:
   # http://git.infradead.org/users/hch/nvmetcli.git
   shareStrategyNvmetCli:
     #sudoEnabled: true
+    # /root/.local/bin/nvmetcli
     #nvmetcliPath: nvmetcli
     # prevent startup race conditions by ensuring the config on disk has been imported
     # before we start messing with things

src/driver/controller-client-common/index.js

@@ -636,6 +636,17 @@ class ControllerClientCommonDriver extends CsiBaseDriver {
       );
     }
 
+    // deleteStrategy
+    const delete_strategy = _.get(
+      driver.options,
+      "_private.csi.volume.deleteStrategy",
+      ""
+    );
+
+    if (delete_strategy == "retain") {
+      return {};
+    }
+
     const volume_path = driver.getControllerVolumePath(volume_id);
     await driver.deleteDir(volume_path);
 

src/driver/controller-objectivefs/index.js

@@ -458,6 +458,17 @@ class ControllerObjectiveFSDriver extends CsiBaseDriver {
       );
     }
 
+    // deleteStrategy
+    const delete_strategy = _.get(
+      driver.options,
+      "_private.csi.volume.deleteStrategy",
+      ""
+    );
+
+    if (delete_strategy == "retain") {
+      return {};
+    }
+
     volume_id = volume_id.toLowerCase();
     const filesystem = `${pool}/${volume_id}`;
     await ofsClient.destroy({}, filesystem, []);

src/driver/controller-synology/index.js

@@ -691,6 +691,17 @@ class ControllerSynologyDriver extends CsiBaseDriver {
       );
     }
 
+    // deleteStrategy
+    const delete_strategy = _.get(
+      driver.options,
+      "_private.csi.volume.deleteStrategy",
+      ""
+    );
+
+    if (delete_strategy == "retain") {
+      return {};
+    }
+
     let response;
 
     switch (driver.getDriverShareType()) {

src/driver/controller-zfs/index.js

@@ -1297,6 +1297,17 @@ class ControllerZfsBaseDriver extends CsiBaseDriver {
 
     driver.ctx.logger.debug("dataset properties: %j", properties);
 
+    // deleteStrategy
+    const delete_strategy = _.get(
+      driver.options,
+      "_private.csi.volume.deleteStrategy",
+      ""
+    );
+
+    if (delete_strategy == "retain") {
+      return {};
+    }
+
     // remove share resources
     await this.deleteShare(call, datasetName);
 

src/driver/freenas/api.js

@@ -3020,6 +3020,17 @@ class FreeNASApiDriver extends CsiBaseDriver {
 
     driver.ctx.logger.debug("dataset properties: %j", properties);
 
+    // deleteStrategy
+    const delete_strategy = _.get(
+      driver.options,
+      "_private.csi.volume.deleteStrategy",
+      ""
+    );
+
+    if (delete_strategy == "retain") {
+      return {};
+    }
+
     // remove share resources
     await this.deleteShare(call, datasetName);
 

src/driver/index.js

@@ -815,11 +815,12 @@ class CsiBaseDriver {
               if (!has_guest) {
                 mount_flags.push("guest");
               }
+            }
 
+            // handle node service VOLUME_MOUNT_GROUP
             if (volume_mount_group) {
               mount_flags.push(`gid=${volume_mount_group}`);
             }
-            }
             break;
           case "iscsi":
             let portals = [];