summaryrefslogtreecommitdiffstats
path: root/kubernetes/helm/plugins/deploy/deploy.sh
blob: 81bc4135e96bdaee5c6055f4f97dbbd1308c7997 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
#!/bin/bash

usage() {
cat << EOF
Install (or upgrade) an umbrella Helm Chart, and its subcharts, as separate Helm Releases

The umbrella Helm Chart is broken apart into a parent release and subchart releases.
Subcharts the are disabled (<chart>.enabled=false) will not be installed or upgraded.
All releases are grouped and deployed within the same namespace.


The deploy arguments must be a release and chart. The chart
argument can be either: a chart reference('stable/onap'), a path to a chart directory,
a packaged chart, or a fully qualified URL. For chart references, the latest
version will be specified unless the '--version' flag is set.

To override values in a chart, use either the '--values' flag and pass in a file
or use the '--set' flag and pass configuration from the command line, to force string
values, use '--set-string'.

You can specify the '--values'/'-f' flag multiple times. The priority will be given to the
last (right-most) file specified. For example, if both myvalues.yaml and override.yaml
contained a key called 'Test', the value set in override.yaml would take precedence:

    $ helm deploy demo ./onap --namespace onap -f openstack.yaml -f overrides.yaml

You can specify the '--set' flag multiple times. The priority will be given to the
last (right-most) set specified. For example, if both 'bar' and 'newbar' values are
set for a key called 'foo', the 'newbar' value would take precedence:

    $ helm deploy demo local/onap --namespace onap -f overrides.yaml --set log.enabled=false --set vid.enabled=false

Usage:
  helm deploy [RELEASE] [CHART] [flags]

Flags:
      --namespace string         namespace to install the release into. Defaults to the current kube config namespace.
      --set stringArray          set values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
      --set-string stringArray   set STRING values on the command line (can specify multiple or separate values with commas: key1=val1,key2=val2)
  -f, --values valueFiles        specify values in a YAML file or a URL(can specify multiple) (default [])
      --verbose                  enables full helm install/upgrade output during deploy
      --set-last-applied         set the last-applied-configuration annotation on all objects.This annotation is required to restore services using Ark/Veloro backup restore.
EOF
}

generate_overrides() {
  SUBCHART_NAMES=($(cat $COMPUTED_OVERRIDES | grep -v '^\s\s'))

  for index in "${!SUBCHART_NAMES[@]}"; do
    START=${SUBCHART_NAMES[index]}
    END=${SUBCHART_NAMES[index+1]}
    if [ "$START" = "global:" ]; then
      echo "global:" > $GLOBAL_OVERRIDES
      cat $COMPUTED_OVERRIDES | sed '/common:/,/consul:/d' \
        | sed -n '/^'"$START"'/,/'log:'/p' | sed '1d;$d' >> $GLOBAL_OVERRIDES
    else
      SUBCHART_DIR="$CACHE_SUBCHART_DIR/$(echo "$START" |cut -d':' -f1)"
      if [ -d "$SUBCHART_DIR" ]; then
        if [ -z "$END" ]; then
          cat $COMPUTED_OVERRIDES | sed -n '/^'"$START"'/,/'"$END"'/p' \
            | sed '1d;$d' | cut -c3- > $SUBCHART_DIR/subchart-overrides.yaml
        else
          cat $COMPUTED_OVERRIDES | sed -n '/^'"$START"'/,/^'"$END"'/p' \
            | sed '1d;$d' | cut -c3- > $SUBCHART_DIR/subchart-overrides.yaml
        fi
      fi
    fi
  done
}
resolve_deploy_flags() {
  flags=($1)
  n=${#flags[*]}
  i=0 ; while [ "$i" -lt "$n" ]; do
    PARAM=${flags[i]}
    if [ "$PARAM" = "-f" ] || \
       [ "$PARAM" = "--values" ] || \
       [ "$PARAM" = "--set" ] || \
       [ "$PARAM" = "--set-string" ] || \
       [ "$PARAM" = "--version" ]; then
       # skip param and its value
       i=$((i + 1))
    else
      DEPLOY_FLAGS="$DEPLOY_FLAGS $PARAM"
    fi
    i=$((i+1))
  done
  echo "$DEPLOY_FLAGS"
}


check_for_dep() {
    try=0
    retries=30
    until (kubectl get deployment -n $RELEASE | grep -P "\b$2\b") &>/dev/null; do
        (( ++try > retries )) && exit 1
        echo "$1 not found. Retry $try/$retries"
        sleep 5
    done
    echo "$1 found. Waiting for pod intialisation"
    sleep 15
}


deploy() {
  # validate params
  if [ -z "$1" ] || [ -z "$2" ]; then
    usage
    exit 1
  fi

  RELEASE=$1
  CHART_URL=$2
  FLAGS=$(echo ${@} | sed 's/^ *[^ ]* *[^ ]* *//')
  CHART_REPO="$(echo "$CHART_URL" | cut -d'/' -f1)"
  CHART_NAME="$(echo "$CHART_URL" | cut -d'/' -f2)"

  CACHE_DIR=~/.local/share/helm/plugins/deploy/cache
  echo "Use cache dir: $CACHE_DIR"
  CHART_DIR=$CACHE_DIR/$CHART_NAME
  CACHE_SUBCHART_DIR=$CHART_DIR-subcharts
  LOG_DIR=$CHART_DIR/logs

  # determine if verbose output is enabled
  VERBOSE="false"
  if expr "$FLAGS" : ".*--verbose.*" ; then
    FLAGS="$(echo $FLAGS| sed -n 's/--verbose//p')"
    VERBOSE="true"
  fi
  # determine if delay for deployment is enabled
  DELAY="false"
  if expr "$FLAGS" : ".*--delay.*" ; then
    FLAGS="$(echo $FLAGS| sed -n 's/--delay//p')"
    DELAY="true"
  fi
  # determine if set-last-applied flag is enabled
  SET_LAST_APPLIED="false"
  if expr "$FLAGS" : ".*--set-last-applied.*" ; then
    FLAGS="$(echo $FLAGS| sed -n 's/--set-last-applied//p')"
    SET_LAST_APPLIED="true"
  fi
  if expr "$FLAGS" : ".*--dry-run.*" ; then
    VERBOSE="true"
    FLAGS="$FLAGS --debug"
  fi

  # should pass all flags instead
  NAMESPACE="$(echo $FLAGS | sed -n 's/.*\(namespace\).\s*/\1/p' | cut -c10- | cut -d' ' -f1)"

  VERSION="$(echo $FLAGS | sed -n 's/.*\(version\).\s*/\1/p' | cut -c8- | cut -d' ' -f1)"

  if [ ! -z $VERSION ]; then
     VERSION="--version $VERSION"
  fi

  # Remove all override values passed in as arguments. These will be used during dry run
  # to resolve computed override values. Remaining flags will be passed on during
  # actual upgrade/install of parent and subcharts.
  DEPLOY_FLAGS=$(resolve_deploy_flags "$FLAGS")

  # determine if upgrading individual subchart or entire parent + subcharts
  SUBCHART_RELEASE="$(echo "$RELEASE" |cut -d'-' -f2)"
  # update specified subchart without parent
  RELEASE="$(echo "$RELEASE" |cut -d'-' -f1)"
  if [ "$SUBCHART_RELEASE" = "$RELEASE" ]; then
    SUBCHART_RELEASE=
  fi

  # clear previously cached charts
  rm -rf $CACHE_DIR

  # fetch umbrella chart (parent chart containing subcharts)
  if [ -d "$CHART_URL" ]; then
    mkdir -p $CHART_DIR
    cp -R $CHART_URL/* $CHART_DIR/

    charts=$CHART_DIR/charts/*
    for subchart in $charts ; do
      tar xzf ${subchart} -C $CHART_DIR/charts/
    done
    rm -rf $CHART_DIR/charts/*.tgz
  else
    echo "fetching $CHART_URL"
    helm fetch $CHART_URL --untar --untardir $CACHE_DIR $VERSION
  fi

  # create log driectory
  mkdir -p $LOG_DIR

  # move out subcharts to process separately
  mkdir -p $CACHE_SUBCHART_DIR
  mv $CHART_DIR/charts/* $CACHE_SUBCHART_DIR/
  # temp hack - parent chart needs common subchart
  mv $CACHE_SUBCHART_DIR/common $CHART_DIR/charts/

 # disable dependencies
  rm $CHART_DIR/Chart.lock
  sed -n '1,/dependencies:/p;/description:/,$p' $CHART_DIR/Chart.yaml | grep -v dependencies > $CHART_DIR/deploy_Chart.yaml
  mv $CHART_DIR/Chart.yaml $CHART_DIR/Chart.deploy
  mv $CHART_DIR/deploy_Chart.yaml $CHART_DIR/Chart.yaml

  # compute overrides for parent and all subcharts
  COMPUTED_OVERRIDES=$CACHE_DIR/$CHART_NAME/computed-overrides.yaml
  helm upgrade -i $RELEASE $CHART_DIR $FLAGS --dry-run --debug \
   | sed -n '/COMPUTED VALUES:/,/HOOKS:/p' | sed '1d;$d' > $COMPUTED_OVERRIDES

  # extract global overrides to apply to parent and all subcharts
  GLOBAL_OVERRIDES=$CHART_DIR/global-overrides.yaml
  generate_overrides $COMPUTED_OVERRIDES $GLOBAL_OVERRIDES

  # upgrade/install parent chart first
  if [ -z "$SUBCHART_RELEASE" ]; then
    LOG_FILE=$LOG_DIR/${RELEASE}.log
    :> $LOG_FILE

    helm upgrade -i $RELEASE $CHART_DIR $DEPLOY_FLAGS -f $COMPUTED_OVERRIDES \
     > $LOG_FILE.log 2>&1

    if [ "$VERBOSE" = "true" ]; then
      cat $LOG_FILE
    else
      echo "release \"$RELEASE\" deployed"
    fi
    # Add annotation last-applied-configuration if set-last-applied flag is set
    if [ "$SET_LAST_APPLIED" = "true" ]; then
      helm get manifest ${RELEASE} \
      | kubectl apply set-last-applied --create-annotation -n onap -f - \
      > $LOG_FILE.log 2>&1
    fi
  fi

  # upgrade/install each "enabled" subchart
  cd $CACHE_SUBCHART_DIR/
  #“helm ls” is an expensive command in that it can take a long time to execute.
  #So cache the results to prevent repeated execution.
  ALL_HELM_RELEASES=$(helm ls -q)

  #Deploy the srtimzi-kafka chart in advance. Dependent charts require the entity-operator
  #for management of the strimzi crds
  helm upgrade -i "${RELEASE}-strimzi" $CACHE_SUBCHART_DIR/strimzi
  echo "waiting for ${RELEASE}-strimzi-entity-operator to be deployed"
  check_for_dep ${RELEASE}-strimzi-entity-operator

  for subchart in * ; do
    SUBCHART_OVERRIDES=$CACHE_SUBCHART_DIR/$subchart/subchart-overrides.yaml

    SUBCHART_ENABLED=0
    if [ -f $SUBCHART_OVERRIDES ]; then
      SUBCHART_ENABLED=$(cat $SUBCHART_OVERRIDES | grep -c "^enabled: true")
    fi

    if [ $SUBCHART_ENABLED -eq 1 ]; then
      if [ -z "$SUBCHART_RELEASE" ] || [ "$SUBCHART_RELEASE" = "$subchart" ]; then
        LOG_FILE=$LOG_DIR/"${RELEASE}-${subchart}".log
        :> $LOG_FILE

        helm upgrade -i "${RELEASE}-${subchart}" $CACHE_SUBCHART_DIR/$subchart \
         $DEPLOY_FLAGS -f $GLOBAL_OVERRIDES -f $SUBCHART_OVERRIDES \
         > $LOG_FILE 2>&1

        if [ "$VERBOSE" = "true" ]; then
          cat $LOG_FILE
        else
          echo "release \"${RELEASE}-${subchart}\" deployed"
        fi
        # Add annotation last-applied-configuration if set-last-applied flag is set
        if [ "$SET_LAST_APPLIED" = "true" ]; then
          helm get manifest "${RELEASE}-${subchart}" \
          | kubectl apply set-last-applied --create-annotation -n onap -f - \
          > $LOG_FILE.log 2>&1
        fi
      fi
      if [ "$DELAY" = "true" ]; then
        echo sleep 3m
        sleep 180
      fi
    else
      array=($(echo "$ALL_HELM_RELEASES" | grep "${RELEASE}-${subchart}"))
      n=${#array[*]}
      for i in $(seq $(($n-1)) -1 0); do
        helm del "${array[i]}"
      done
    fi
  done

  # report on success/failures of installs/upgrades
  helm ls --all-namespaces | grep -i FAILED | grep $RELEASE
}
HELM_VER=$(helm version --template "{{.Version}}")
echo $HELM_VER

case "${1:-"help"}" in
  "help")
    usage
    ;;
  "--help")
    usage
    ;;
  "-h")
    usage
    ;;
  *)
    deploy $1 $2 $(echo ${@} | sed 's/^ *[^ ]* *[^ ]* *//')
    ;;
esac

exit 0