Refatora Solr (#3585)

docker/Dockerfile

@@ -1,12 +1,10 @@
-FROM python:3.7-slim-buster
+FROM python:3.9-slim-buster
 
 # Setup env
 ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 ENV PYTHONDONTWRITEBYTECODE 1
-
+ENV PYTHONUNBUFFERED=1
-#ENV PYTHONFAULTHANDLER 1
-
 ENV DEBIAN_FRONTEND noninteractive
 
 ENV BUILD_PACKAGES apt-utils apt-file libpq-dev graphviz-dev build-essential git pkg-config \
@@ -34,12 +32,13 @@ RUN apt-get update && \
     SUDO_FORCE_REMOVE=yes apt-get purge -y --auto-remove $BUILD_PACKAGES && \
     apt-get autoremove && apt-get clean && rm -rf /var/lib/apt/lists/*
 
-ENV HOME=/var/interlegis/sapl
+WORKDIR /var/interlegis/sapl/
+ADD . /var/interlegis/sapl/
 
 COPY docker/start.sh $HOME
-COPY docker/check_solr.sh $HOME
+COPY docker/solr_cli.py $HOME
-COPY docker/solr_api.py $HOME
+COPY docker/wait-for-pg.sh $HOME
-COPY docker/busy-wait.sh $HOME
+COPY docker/wait-for-solr.sh $HOME
 COPY docker/create_admin.py $HOME
 COPY docker/genkey.py $HOME
 COPY docker/gunicorn_start.sh $HOME
@@ -55,7 +54,8 @@ RUN rm -rf /var/interlegis/sapl/sapl/.env && \
     rm -rf /var/interlegis/sapl/sapl.db
 
 RUN chmod +x /var/interlegis/sapl/start.sh && \
-    chmod +x /var/interlegis/sapl/check_solr.sh && \
+    chmod +x /var/interlegis/sapl/wait-for-solr.sh && \
+    chmod +x /var/interlegis/sapl/wait-for-pg.sh && \
     ln -sf /dev/stdout /var/log/nginx/access.log && \
     ln -sf /dev/stderr /var/log/nginx/error.log && \
     mkdir /var/log/sapl/ && touch /var/interlegis/sapl/sapl.log && \

docker/docker-compose.yaml

@@ -0,0 +1,77 @@
+version: "3.7"
+services:
+  sapldb:
+    image: postgres:10.5-alpine
+    restart: always
+    container_name: postgres
+    labels:
+        NAME: "postgres"
+    environment:
+      POSTGRES_PASSWORD: sapl
+      POSTGRES_USER: sapl
+      POSTGRES_DB: sapl
+      PGDATA : /var/lib/postgresql/data/
+    volumes:
+      - sapldb_data:/var/lib/postgresql/data/
+    ports:
+      - "5433:5432"
+    networks:
+      - sapl-net
+  saplsolr:
+    image: solr:8.11
+    restart: always
+    command: bin/solr start -c -f
+    container_name: solr
+    labels:
+        NAME: "solr"
+    volumes:
+      - solr_data:/opt/solr/server/solr
+      - solr_configsets:/opt/solr/server/solr/configsets
+    ports:
+      - "8983:8983"
+    networks:
+      - sapl-net
+  sapl:
+#    image: interlegis/sapl:3.1.162-RC13
+    build:
+      context: ../
+      dockerfile: ./docker/Dockerfile
+    container_name: sapl
+    labels:
+       NAME: "sapl"
+    restart: always
+    environment:
+      ADMIN_PASSWORD: interlegis
+      ADMIN_EMAIL: email@dominio.net
+      DEBUG: 'False'
+      EMAIL_PORT: 587
+      EMAIL_USE_TLS: 'False'
+      EMAIL_HOST: smtp.dominio.net
+      EMAIL_HOST_USER: usuariosmtp
+      EMAIL_SEND_USER: usuariosmtp
+      EMAIL_HOST_PASSWORD: senhasmtp
+      USE_SOLR: 'True'
+      SOLR_COLLECTION: sapl
+      SOLR_URL: http://solr:solr@saplsolr:8983
+      IS_ZK_EMBEDDED: 'True'
+      TZ: America/Sao_Paulo
+    volumes:
+      - sapl_data:/var/interlegis/sapl/data
+      - sapl_media:/var/interlegis/sapl/media
+    depends_on:
+      - sapldb
+      - saplsolr
+    ports:
+      - "80:80"
+    networks:
+      - sapl-net
+networks:
+  sapl-net:
+    name: sapl-net
+    driver: bridge
+volumes:
+  sapldb_data:
+  sapl_data:
+  sapl_media:
+  solr_data:
+  solr_configsets:

docker/solr_api.py → docker/solr_cli.py

@@ -1,18 +1,102 @@
-from io import BytesIO
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 import argparse
-import os
+import logging
-import requests
+import re
+import secrets
 import subprocess
 import sys
 import zipfile
+from base64 import b64encode, b64decode
+from hashlib import sha256
+from io import BytesIO
 from pathlib import Path
 
-##
+import requests
-## Este módulo deve ser executado na raiz do projeto
+from kazoo.client import KazooClient
-##
+
+#
+# Este módulo deve ser executado na raiz do projeto
+#
+
+logging.basicConfig()
+
+SECURITY_FILE_TEMPLATE = """
+   {
+        "authentication":{
+        "blockUnknown": true,
+        "class":"solr.BasicAuthPlugin",
+        "credentials":{"%s":"%s %s"},
+        "forwardCredentials": false,
+        "realm": "Solr Login"
+        },
+        "authorization":{
+            "class":"solr.RuleBasedAuthorizationPlugin",
+            "permissions":[{"name":"security-edit", "role":"admin"}],
+            "user-role":{"%s":"admin"}
+        }
+    }
+"""
+
+URL_PATTERN = 'https?://(([a-zA-Z0-9]+):([a-zA-Z0-9]+)@)?([a-zA-Z0-9.-]+)(:[0-9]{4})?'
+
+
+def solr_hash_password(password: str, salt: str = None):
+    """
+        Generates a password and salt to be used in Basic Auth Solr
+
+        password: clean text password string
+        salt (optional): base64 salt string
+        returns: sha256 hash of password and salt (both base64 strings)
+    """
+    m = sha256()
+    if salt is None:
+        salt = secrets.token_bytes(32)
+    else:
+        salt = b64decode(salt)
+    m.update(salt + password.encode('utf-8'))
+    digest = m.digest()
+
+    m = sha256()
+    m.update(digest)
+    digest = m.digest()
+
+    cypher = b64encode(digest).decode('utf-8')
+    salt = b64encode(salt).decode('utf-8')
+    return cypher, salt
 
-class SolrClient:
 
+def create_security_file(username, password):
+    print("Creating security.json file...")
+    with open("security.json", "w") as f:
+        cypher, salt = solr_hash_password(password)
+        f.write(SECURITY_FILE_TEMPLATE % (username, cypher, salt, username))
+    print("file created!")
+
+
+def upload_security_file(zk_host):
+    zk_port = 9983  # embedded ZK port
+    print(f"Uploading security file to Solr, ZK server={zk_host}:{zk_port}...")
+    try:
+        with open('security.json', 'r') as f:
+            data = f.read()
+        zk = KazooClient(hosts=f"{zk_host}:{zk_port}")
+        zk.start()
+        print("Uploading security.json file...")
+        if zk.exists('/security.json'):
+            zk.set("/security.json", str.encode(data))
+        else:
+            zk.create("/security.json", str.encode(data))
+        data, stat = zk.get('/security.json')
+        print("file uploaded!")
+        print(data.decode('utf-8'))
+        zk.stop()
+    except Exception as e:
+        print(e)
+        sys.exit(-1)
+
+
+class SolrClient:
     LIST_CONFIGSETS = "{}/solr/admin/configs?action=LIST&omitHeader=true&wt=json"
     UPLOAD_CONFIGSET = "{}/solr/admin/configs?action=UPLOAD&name={}&wt=json"
     LIST_COLLECTIONS = "{}/solr/admin/collections?action=LIST&wt=json"
@@ -160,6 +244,22 @@ class SolrClient:
             print("Num docs: %s" % num_docs)
 
 
+def setup_embedded_zk(solr_url):
+    match = re.match(URL_PATTERN, solr_url)
+    if match:
+        _, solr_user, solr_pwd, solr_host, solr_port = match.groups()
+
+        if solr_user and solr_pwd and solr_host:
+            create_security_file(solr_user, solr_pwd)
+            upload_security_file(solr_host)
+        else:
+            print(f"Missing Solr's username, password, and host: {solr_user}/{solr_pwd}/{solr_host}")
+            sys.exit(-1)
+    else:
+        print(f"Solr URL path doesn't match the required format: {solr_url}")
+        sys.exit(-1)
+
+
 if __name__ == '__main__':
 
     parser = argparse.ArgumentParser(description='Cria uma collection no Solr')
@@ -178,6 +278,9 @@ if __name__ == '__main__':
     parser.add_argument('-ms', type=int, dest='max_shards_per_node', nargs='?',
                         help='Max shards per node (default=1)', default=1)
 
+    parser.add_argument("--embedded_zk", default=False, action="store_true",
+                        help="Embedded ZooKeeper")
+
     try:
         args = parser.parse_args()
     except IOError as msg:
@@ -185,10 +288,17 @@ if __name__ == '__main__':
         sys.exit(-1)
 
     url = args.url.pop()
-    collection = args.collection.pop()
 
+    if args.embedded_zk:
+        print("Setup embedded ZooKeeper...")
+        setup_embedded_zk(url)
+
+    collection = args.collection.pop()
     client = SolrClient(url=url)
 
+    ## Add --force to force upload security.json, configset upload and collection recreation
+    ## it will clean the solr server before proceeding
+    ## Add --clean option to clean uploadconfig and collection
     if not client.exists_collection(collection):
         print("Collection '%s' doesn't exists. Creating a new one..." % collection)
         created = client.create_collection(collection,
@@ -200,6 +310,7 @@ if __name__ == '__main__':
     else:
         print("Collection '%s' exists." % collection)
 
+    ## Add --disable-index to disable auto index
     num_docs = client.get_num_docs(collection)
     if num_docs == 0:
         print("Performing a full reindex of '%s' collection..." % collection)

docker/start.sh

@@ -22,7 +22,6 @@ create_env() {
 
     touch $FILENAME
 
-
     # explicitly use '>' to erase any previous content
     echo "SECRET_KEY="$KEY > $FILENAME
     # now only appends
@@ -39,14 +38,14 @@ create_env() {
     echo "USE_SOLR = ""${USE_SOLR-False}" >> $FILENAME
     echo "SOLR_COLLECTION = ""${SOLR_COLLECTION-sapl}" >> $FILENAME
     echo "SOLR_URL = ""${SOLR_URL-http://localhost:8983}" >> $FILENAME
-
+    echo "IS_ZK_EMBEDDED = ""${IS_ZK_EMBEDDED-False}" >> $FILENAME
 
     echo "[ENV FILE] done."
 }
 
 create_env
 
-/bin/bash busy-wait.sh $DATABASE_URL
+/bin/bash wait-for-pg.sh $DATABASE_URL
 
 yes yes | python3 manage.py migrate
 
@@ -55,39 +54,46 @@ yes yes | python3 manage.py migrate
 USE_SOLR="${USE_SOLR:=False}"
 SOLR_URL="${SOLR_URL:=http://localhost:8983}"
 SOLR_COLLECTION="${SOLR_COLLECTION:=sapl}"
-
 NUM_SHARDS=${NUM_SHARDS:=1}
 RF=${RF:=1}
 MAX_SHARDS_PER_NODE=${MAX_SHARDS_PER_NODE:=1}
+IS_ZK_EMBEDDED="${IS_ZK_EMBEDDED:=False}"
 
 if [ "${USE_SOLR-False}" == "True" ] || [ "${USE_SOLR-False}" == "true" ]; then
 
-    echo "SOLR configurations"
+    echo "Solr configurations"
     echo "==================="
     echo "URL: $SOLR_URL"
     echo "COLLECTION: $SOLR_COLLECTION"
     echo "NUM_SHARDS: $NUM_SHARDS"
     echo "REPLICATION FACTOR: $RF"
     echo "MAX SHARDS PER NODE: $MAX_SHARDS_PER_NODE"
+    echo "ASSUME ZK EMBEDDED: $IS_ZK_EMBEDDED"
     echo "========================================="
 
-    echo "running solr script"
+    echo "running Solr script"
-    /bin/bash check_solr.sh $SOLR_URL
+    /bin/bash wait-for-solr.sh $SOLR_URL
     CHECK_SOLR_RETURN=$?
 
     if [ $CHECK_SOLR_RETURN == 1 ]; then
-        echo "Connecting to solr..."
+        echo "Connecting to Solr..."
-        python3 solr_api.py -u $SOLR_URL -c $SOLR_COLLECTION -s $NUM_SHARDS -rf $RF -ms $MAX_SHARDS_PER_NODE &
+
-        # python3 manage.py rebuild_index --noinput &
+
+        if [ "${IS_ZK_EMBEDDED-False}" == "True" ] || [ "${IS_ZK_EMBEDDED-False}" == "true" ]; then
+            ZK_EMBEDDED="--embedded_zk"
+            echo "Assuming embedded ZooKeeper instalation..."
+        fi
+
+        python3 solr_cli.py -u $SOLR_URL -c $SOLR_COLLECTION -s $NUM_SHARDS -rf $RF -ms $MAX_SHARDS_PER_NODE $ZK_EMBEDDED &
     else
         echo "Solr is offline, not possible to connect."
     fi
 
 else
-    echo "Suporte a SOLR não inicializado."
+    echo "Solr support is not initialized."
 fi
 
-echo "Criando usuário admin..."
+echo "Creating admin user..."
 
 user_created=$(python3 create_admin.py 2>&1)
 

docker/check_solr.sh → docker/wait-for-solr.sh

@@ -4,10 +4,10 @@
 
 SOLR_URL=$1
 
-RETRY_COUNT=1
+RETRY_COUNT=0
-RETRY_LIMIT=4
+RETRY_LIMIT=60 # wait until 1 min
 
-echo "Waiting for solr connection at $SOLR_URL ..."
+echo "Waiting for Solr connection at $SOLR_URL ..."
 while [[ $RETRY_COUNT < $RETRY_LIMIT ]]; do
    echo "Attempt to connect to solr: $RETRY_COUNT of $RETRY_LIMIT"
    let RETRY_COUNT=RETRY_COUNT+1;
@@ -18,7 +18,7 @@ while [[ $RETRY_COUNT < $RETRY_LIMIT ]]; do
       echo "Solr server is up!"
       exit 1
    else
-      sleep 3
+      sleep 1
    fi
 done
 echo "Solr connection failed."

requirements/requirements.txt

@@ -33,6 +33,7 @@ PyPDF4==1.27.0
 pyoai==2.5.0
 Unidecode==1.1.1
 whitenoise==5.1.0
+kazoo==2.8.0
 
 git+https://github.com/interlegis/trml2pdf
 git+https://github.com/interlegis/django-admin-bootstrapped

scripts/solr_password.py → solr/bin/solr_password.py

@@ -18,7 +18,7 @@ from base64 import b64encode, b64decode
 ##
 
 
-def solr_hash_password(password: str, salt: str = None) -> (str, str):
+def solr_hash_password(password: str, salt: str = None):
     """
         Generates a password and salt to be used in Basic Auth Solr