java_keystore: New ssl_backend option for cryptography (#2485)

* Adding cryptography as a backend for OpenSSL operations

* Updating unit tests and adding changelog fragment

* Allowing private key password option when using unprotected key

* Incorporating suggestions from initial review

* Centralizing module exit path

changelogs/fragments/2485-java_keystore-ssl_backend-parameter.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - java_keystore - added ``ssl_backend`` parameter for using the cryptography library instead of the OpenSSL binary (https://github.com/ansible-collections/community.general/pull/2485).

plugins/modules/system/java_keystore.py

@@ -88,9 +88,19 @@ options:
     description:
       - Mode the file should be.
     required: false
+  ssl_backend:
+    description:
+      - Backend for loading private keys and certificates.
+    type: str
+    default: openssl
+    choices:
+      - openssl
+      - cryptography
+    version_added: 3.1.0
 requirements:
-  - openssl in PATH
+  - openssl in PATH (when I(ssl_backend=openssl))
   - keytool in PATH
+  - cryptography >= 3.0 (when I(ssl_backend=cryptography))
 author:
   - Guillaume Grossetie (@Mogztter)
   - quidame (@quidame)
@@ -164,55 +174,283 @@ import os
 import re
 import tempfile
 
-from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.six import PY2
+from ansible.module_utils.basic import AnsibleModule, missing_required_lib
+from ansible.module_utils.common.text.converters import to_bytes, to_native, to_text
+
+try:
+    from cryptography.hazmat.primitives.serialization.pkcs12 import serialize_key_and_certificates
+    from cryptography.hazmat.primitives.serialization import (
+        BestAvailableEncryption,
+        NoEncryption,
+        load_pem_private_key,
+        load_der_private_key,
+    )
+    from cryptography.x509 import (
+        load_pem_x509_certificate,
+        load_der_x509_certificate,
+    )
+    from cryptography.hazmat.primitives import hashes
+    from cryptography.exceptions import UnsupportedAlgorithm
+    from cryptography.hazmat.backends.openssl import backend
+    HAS_CRYPTOGRAPHY_PKCS12 = True
+except ImportError:
+    HAS_CRYPTOGRAPHY_PKCS12 = False
 
 
-def read_certificate_fingerprint(module, openssl_bin, certificate_path):
-    current_certificate_fingerprint_cmd = [openssl_bin, "x509", "-noout", "-in", certificate_path, "-fingerprint", "-sha256"]
-    (rc, current_certificate_fingerprint_out, current_certificate_fingerprint_err) = run_commands(module, current_certificate_fingerprint_cmd)
-    if rc != 0:
-        return module.fail_json(msg=current_certificate_fingerprint_out,
-                                err=current_certificate_fingerprint_err,
-                                cmd=current_certificate_fingerprint_cmd,
-                                rc=rc)
+class JavaKeystore:
+    def __init__(self, module):
+        self.module = module
 
-    current_certificate_match = re.search(r"=([\w:]+)", current_certificate_fingerprint_out)
-    if not current_certificate_match:
-        return module.fail_json(msg="Unable to find the current certificate fingerprint in %s" % current_certificate_fingerprint_out,
-                                cmd=current_certificate_fingerprint_cmd,
-                                rc=rc)
+        self.keytool_bin = module.get_bin_path('keytool', True)
 
-    return current_certificate_match.group(1)
-
-
-def read_stored_certificate_fingerprint(module, keytool_bin, alias, keystore_path, keystore_password):
-    stored_certificate_fingerprint_cmd = [keytool_bin, "-list", "-alias", alias, "-keystore", keystore_path, "-storepass:env", "STOREPASS", "-v"]
-    (rc, stored_certificate_fingerprint_out, stored_certificate_fingerprint_err) = run_commands(
-        module, stored_certificate_fingerprint_cmd, environ_update=dict(STOREPASS=keystore_password))
-    if rc != 0:
-        if "keytool error: java.lang.Exception: Alias <%s> does not exist" % alias in stored_certificate_fingerprint_out:
-            return "alias mismatch"
-        if re.match(r'keytool error: java\.io\.IOException: [Kk]eystore( was tampered with, or)? password was incorrect',
-                    stored_certificate_fingerprint_out):
-            return "password mismatch"
-        return module.fail_json(msg=stored_certificate_fingerprint_out,
-                                err=stored_certificate_fingerprint_err,
-                                cmd=stored_certificate_fingerprint_cmd,
-                                rc=rc)
-
-    stored_certificate_match = re.search(r"SHA256: ([\w:]+)", stored_certificate_fingerprint_out)
-    if not stored_certificate_match:
-        return module.fail_json(msg="Unable to find the stored certificate fingerprint in %s" % stored_certificate_fingerprint_out,
-                                cmd=stored_certificate_fingerprint_cmd,
-                                rc=rc)
-
-    return stored_certificate_match.group(1)
-
-
-def run_commands(module, cmd, data=None, environ_update=None, check_rc=False):
-    return module.run_command(cmd, check_rc=check_rc, data=data, environ_update=environ_update)
+        self.certificate = module.params['certificate']
+        self.keypass = module.params['private_key_passphrase']
+        self.keystore_path = module.params['dest']
+        self.name = module.params['name']
+        self.password = module.params['password']
+        self.private_key = module.params['private_key']
+        self.ssl_backend = module.params['ssl_backend']
+
+        if self.ssl_backend == 'openssl':
+            self.openssl_bin = module.get_bin_path('openssl', True)
+        else:
+            if not HAS_CRYPTOGRAPHY_PKCS12:
+                self.module.fail_json(msg=missing_required_lib('cryptography >= 3.0'))
+
+        if module.params['certificate_path'] is None:
+            self.certificate_path = create_file(self.certificate)
+            self.module.add_cleanup_file(self.certificate_path)
+        else:
+            self.certificate_path = module.params['certificate_path']
+
+        if module.params['private_key_path'] is None:
+            self.private_key_path = create_file(self.private_key)
+            self.module.add_cleanup_file(self.private_key_path)
+        else:
+            self.private_key_path = module.params['private_key_path']
+
+    def update_permissions(self):
+        try:
+            file_args = self.module.load_file_common_arguments(self.module.params, path=self.keystore_path)
+        except TypeError:
+            # The path argument is only supported in Ansible-base 2.10+. Fall back to
+            # pre-2.10 behavior for older Ansible versions.
+            self.module.params['path'] = self.keystore_path
+            file_args = self.module.load_file_common_arguments(self.module.params)
+        return self.module.set_fs_attributes_if_different(file_args, False)
+
+    def read_certificate_fingerprint(self, cert_format='PEM'):
+        if self.ssl_backend == 'cryptography':
+            if cert_format == 'PEM':
+                cert_loader = load_pem_x509_certificate
+            else:
+                cert_loader = load_der_x509_certificate
+
+            try:
+                with open(self.certificate_path, 'rb') as cert_file:
+                    cert = cert_loader(
+                        cert_file.read(),
+                        backend=backend
+                    )
+            except (OSError, ValueError) as e:
+                self.module.fail_json(msg="Unable to read the provided certificate: %s" % to_native(e))
+
+            fp = hex_decode(cert.fingerprint(hashes.SHA256())).upper()
+            fingerprint = ':'.join([fp[i:i + 2] for i in range(0, len(fp), 2)])
+        else:
+            current_certificate_fingerprint_cmd = [
+                self.openssl_bin, "x509", "-noout", "-in", self.certificate_path, "-fingerprint", "-sha256"
+            ]
+            (rc, current_certificate_fingerprint_out, current_certificate_fingerprint_err) = self.module.run_command(
+                current_certificate_fingerprint_cmd,
+                environ_update=None,
+                check_rc=False
+            )
+            if rc != 0:
+                return self.module.fail_json(
+                    msg=current_certificate_fingerprint_out,
+                    err=current_certificate_fingerprint_err,
+                    cmd=current_certificate_fingerprint_cmd,
+                    rc=rc
+                )
+
+            current_certificate_match = re.search(r"=([\w:]+)", current_certificate_fingerprint_out)
+            if not current_certificate_match:
+                return self.module.fail_json(
+                    msg="Unable to find the current certificate fingerprint in %s" % (
+                        current_certificate_fingerprint_out
+                    ),
+                    cmd=current_certificate_fingerprint_cmd,
+                    rc=rc
+                )
+
+            fingerprint = current_certificate_match.group(1)
+        return fingerprint
+
+    def read_stored_certificate_fingerprint(self):
+        stored_certificate_fingerprint_cmd = [
+            self.keytool_bin, "-list", "-alias", self.name, "-keystore",
+            self.keystore_path, "-storepass:env", "STOREPASS", "-v"
+        ]
+        (rc, stored_certificate_fingerprint_out, stored_certificate_fingerprint_err) = self.module.run_command(
+            stored_certificate_fingerprint_cmd, environ_update=dict(STOREPASS=self.password), check_rc=False)
+        if rc != 0:
+            if "keytool error: java.lang.Exception: Alias <%s> does not exist" % self.name \
+                    in stored_certificate_fingerprint_out:
+                return "alias mismatch"
+            if re.match(
+                    r'keytool error: java\.io\.IOException: ' +
+                    '[Kk]eystore( was tampered with, or)? password was incorrect',
+                    stored_certificate_fingerprint_out
+            ):
+                return "password mismatch"
+            return self.module.fail_json(
+                msg=stored_certificate_fingerprint_out,
+                err=stored_certificate_fingerprint_err,
+                cmd=stored_certificate_fingerprint_cmd,
+                rc=rc
+            )
+
+        stored_certificate_match = re.search(r"SHA256: ([\w:]+)", stored_certificate_fingerprint_out)
+        if not stored_certificate_match:
+            return self.module.fail_json(
+                msg="Unable to find the stored certificate fingerprint in %s" % stored_certificate_fingerprint_out,
+                cmd=stored_certificate_fingerprint_cmd,
+                rc=rc
+            )
+
+        return stored_certificate_match.group(1)
+
+    def cert_changed(self):
+        current_certificate_fingerprint = self.read_certificate_fingerprint()
+        stored_certificate_fingerprint = self.read_stored_certificate_fingerprint()
+        return current_certificate_fingerprint != stored_certificate_fingerprint
+
+    def cryptography_create_pkcs12_bundle(self, keystore_p12_path, key_format='PEM', cert_format='PEM'):
+        if key_format == 'PEM':
+            key_loader = load_pem_private_key
+        else:
+            key_loader = load_der_private_key
+
+        if cert_format == 'PEM':
+            cert_loader = load_pem_x509_certificate
+        else:
+            cert_loader = load_der_x509_certificate
+
+        try:
+            with open(self.private_key_path, 'rb') as key_file:
+                private_key = key_loader(
+                    key_file.read(),
+                    password=to_bytes(self.keypass),
+                    backend=backend
+                )
+        except TypeError:
+            # Re-attempt with no password to match existing behavior
+            try:
+                with open(self.private_key_path, 'rb') as key_file:
+                    private_key = key_loader(
+                        key_file.read(),
+                        password=None,
+                        backend=backend
+                    )
+            except (OSError, TypeError, ValueError, UnsupportedAlgorithm) as e:
+                self.module.fail_json(
+                    msg="The following error occurred while loading the provided private_key: %s" % to_native(e)
+                )
+        except (OSError, ValueError, UnsupportedAlgorithm) as e:
+            self.module.fail_json(
+                msg="The following error occurred while loading the provided private_key: %s" % to_native(e)
+            )
+        try:
+            with open(self.certificate_path, 'rb') as cert_file:
+                cert = cert_loader(
+                    cert_file.read(),
+                    backend=backend
+                )
+        except (OSError, ValueError, UnsupportedAlgorithm) as e:
+            self.module.fail_json(
+                msg="The following error occurred while loading the provided certificate: %s" % to_native(e)
+            )
+
+        if self.password:
+            encryption = BestAvailableEncryption(to_bytes(self.password))
+        else:
+            encryption = NoEncryption()
+
+        pkcs12_bundle = serialize_key_and_certificates(
+            name=to_bytes(self.name),
+            key=private_key,
+            cert=cert,
+            cas=None,
+            encryption_algorithm=encryption
+        )
+
+        with open(keystore_p12_path, 'wb') as p12_file:
+            p12_file.write(pkcs12_bundle)
+
+    def openssl_create_pkcs12_bundle(self, keystore_p12_path):
+        export_p12_cmd = [self.openssl_bin, "pkcs12", "-export", "-name", self.name, "-in", self.certificate_path,
+                          "-inkey", self.private_key_path, "-out", keystore_p12_path, "-passout", "stdin"]
+
+        # when keypass is provided, add -passin
+        cmd_stdin = ""
+        if self.keypass:
+            export_p12_cmd.append("-passin")
+            export_p12_cmd.append("stdin")
+            cmd_stdin = "%s\n" % self.keypass
+        cmd_stdin += "%s\n%s" % (self.password, self.password)
+
+        (rc, export_p12_out, dummy) = self.module.run_command(
+            export_p12_cmd, data=cmd_stdin, environ_update=None, check_rc=False
+        )
+
+        if rc != 0:
+            self.module.fail_json(msg=export_p12_out, cmd=export_p12_cmd, rc=rc)
+
+    def create(self):
+        if self.module.check_mode:
+            return {'changed': True}
+
+        if os.path.exists(self.keystore_path):
+            os.remove(self.keystore_path)
+
+        keystore_p12_path = create_path()
+        self.module.add_cleanup_file(keystore_p12_path)
+
+        if self.ssl_backend == 'cryptography':
+            self.cryptography_create_pkcs12_bundle(keystore_p12_path)
+        else:
+            self.openssl_create_pkcs12_bundle(keystore_p12_path)
+
+        import_keystore_cmd = [self.keytool_bin, "-importkeystore",
+                               "-destkeystore", self.keystore_path,
+                               "-srckeystore", keystore_p12_path,
+                               "-srcstoretype", "pkcs12",
+                               "-alias", self.name,
+                               "-deststorepass:env", "STOREPASS",
+                               "-srcstorepass:env", "STOREPASS",
+                               "-noprompt"]
+
+        (rc, import_keystore_out, dummy) = self.module.run_command(
+            import_keystore_cmd, data=None, environ_update=dict(STOREPASS=self.password), check_rc=False
+        )
+        if rc != 0:
+            return self.module.fail_json(msg=import_keystore_out, cmd=import_keystore_cmd, rc=rc)
+
+        self.update_permissions()
+        return {
+            'changed': True,
+            'msg': import_keystore_out,
+            'cmd': import_keystore_cmd,
+            'rc': rc
+        }
+
+    def exists(self):
+        return os.path.exists(self.keystore_path)
 
 
+# Utility functions
 def create_path():
     dummy, tmpfile = tempfile.mkstemp()
     os.remove(tmpfile)
@@ -226,123 +464,11 @@ def create_file(content):
     return tmpfile
 
 
-def create_tmp_certificate(module):
-    return create_file(module.params['certificate'])
-
-
-def create_tmp_private_key(module):
-    return create_file(module.params['private_key'])
-
-
-def cert_changed(module, openssl_bin, keytool_bin, keystore_path, keystore_pass, alias):
-    certificate_path = module.params['certificate_path']
-    if certificate_path is None:
-        certificate_path = create_tmp_certificate(module)
-    try:
-        current_certificate_fingerprint = read_certificate_fingerprint(module, openssl_bin, certificate_path)
-        stored_certificate_fingerprint = read_stored_certificate_fingerprint(module, keytool_bin, alias, keystore_path, keystore_pass)
-        return current_certificate_fingerprint != stored_certificate_fingerprint
-    finally:
-        if module.params['certificate_path'] is None:
-            os.remove(certificate_path)
-
-
-def create_jks(module, name, openssl_bin, keytool_bin, keystore_path, password, keypass):
-    if module.check_mode:
-        return module.exit_json(changed=True)
-
-    certificate_path = module.params['certificate_path']
-    if certificate_path is None:
-        certificate_path = create_tmp_certificate(module)
-
-    private_key_path = module.params['private_key_path']
-    if private_key_path is None:
-        private_key_path = create_tmp_private_key(module)
-
-    keystore_p12_path = create_path()
-
-    try:
-        if os.path.exists(keystore_path):
-            os.remove(keystore_path)
-
-        export_p12_cmd = [openssl_bin, "pkcs12", "-export", "-name", name, "-in", certificate_path,
-                          "-inkey", private_key_path, "-out", keystore_p12_path, "-passout", "stdin"]
-
-        # when keypass is provided, add -passin
-        cmd_stdin = ""
-        if keypass:
-            export_p12_cmd.append("-passin")
-            export_p12_cmd.append("stdin")
-            cmd_stdin = "%s\n" % keypass
-        cmd_stdin += "%s\n%s" % (password, password)
-
-        (rc, export_p12_out, dummy) = run_commands(module, export_p12_cmd, data=cmd_stdin)
-        if rc != 0:
-            return module.fail_json(msg=export_p12_out,
-                                    cmd=export_p12_cmd,
-                                    rc=rc)
-
-        import_keystore_cmd = [keytool_bin, "-importkeystore",
-                               "-destkeystore", keystore_path,
-                               "-srckeystore", keystore_p12_path,
-                               "-srcstoretype", "pkcs12",
-                               "-alias", name,
-                               "-deststorepass:env", "STOREPASS",
-                               "-srcstorepass:env", "STOREPASS",
-                               "-noprompt"]
-
-        (rc, import_keystore_out, dummy) = run_commands(module, import_keystore_cmd, data=None,
-                                                        environ_update=dict(STOREPASS=password))
-        if rc != 0:
-            return module.fail_json(msg=import_keystore_out,
-                                    cmd=import_keystore_cmd,
-                                    rc=rc)
-
-        update_jks_perm(module, keystore_path)
-        return module.exit_json(changed=True,
-                                msg=import_keystore_out,
-                                cmd=import_keystore_cmd,
-                                rc=rc)
-    finally:
-        if module.params['certificate_path'] is None:
-            os.remove(certificate_path)
-        if module.params['private_key_path'] is None:
-            os.remove(private_key_path)
-        os.remove(keystore_p12_path)
-
-
-def update_jks_perm(module, keystore_path):
-    try:
-        file_args = module.load_file_common_arguments(module.params, path=keystore_path)
-    except TypeError:
-        # The path argument is only supported in Ansible-base 2.10+. Fall back to
-        # pre-2.10 behavior for older Ansible versions.
-        module.params['path'] = keystore_path
-        file_args = module.load_file_common_arguments(module.params)
-    module.set_fs_attributes_if_different(file_args, False)
-
-
-def process_jks(module):
-    name = module.params['name']
-    password = module.params['password']
-    keypass = module.params['private_key_passphrase']
-    keystore_path = module.params['dest']
-    force = module.params['force']
-    openssl_bin = module.get_bin_path('openssl', True)
-    keytool_bin = module.get_bin_path('keytool', True)
-
-    if os.path.exists(keystore_path):
-        if force:
-            create_jks(module, name, openssl_bin, keytool_bin, keystore_path, password, keypass)
-        else:
-            if cert_changed(module, openssl_bin, keytool_bin, keystore_path, password, name):
-                create_jks(module, name, openssl_bin, keytool_bin, keystore_path, password, keypass)
-            else:
-                if not module.check_mode:
-                    update_jks_perm(module, keystore_path)
-                module.exit_json(changed=False)
+def hex_decode(s):
+    if PY2:
+        return s.decode('hex')
     else:
-        create_jks(module, name, openssl_bin, keytool_bin, keystore_path, password, keypass)
+        return s.hex()
 
 
 class ArgumentSpec(object):
@@ -358,6 +484,7 @@ class ArgumentSpec(object):
             private_key_path=dict(type='path', no_log=False),
             private_key_passphrase=dict(type='str', no_log=True),
             password=dict(type='str', required=True, no_log=True),
+            ssl_backend=dict(type='str', default='openssl', choices=['openssl', 'cryptography']),
             force=dict(type='bool', default=False),
         )
         choose_between = (
@@ -379,7 +506,19 @@ def main():
         add_file_common_args=spec.add_file_common_args,
     )
     module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C')
-    process_jks(module)
+
+    result = dict()
+    jks = JavaKeystore(module)
+
+    if jks.exists():
+        if module.params['force'] or jks.cert_changed():
+            result = jks.create()
+        else:
+            result['changed'] = jks.update_permissions()
+    else:
+        result = jks.create()
+
+    module.exit_json(**result)
 
 
 if __name__ == '__main__':

tests/integration/targets/java_keystore/tasks/main.yml

@@ -9,12 +9,22 @@
     - name: Include tasks to create ssl materials on the controller
       include_tasks: prepare.yml
 
+- set_fact:
+    ssl_backends: ['openssl']
+
+- set_fact:
+    ssl_backends: "{{ ssl_backends + ['cryptography'] }}"
+  when: cryptography_version.stdout is version('3.0', '>=')
+
 - when: has_java_keytool
   block:
     - name: Include tasks to play with 'certificate' and 'private_key' contents
       include_tasks: tests.yml
       vars:
         remote_cert: false
+      loop: "{{ ssl_backends }}"
+      loop_control:
+        loop_var: ssl_backend
 
     - name: Include tasks to create ssl materials on the remote host
       include_tasks: prepare.yml
@@ -23,3 +33,6 @@
       include_tasks: tests.yml
       vars:
         remote_cert: true
+      loop: "{{ ssl_backends }}"
+      loop_control:
+        loop_var: ssl_backend

tests/integration/targets/java_keystore/tasks/tests.yml

@@ -23,6 +23,7 @@
     private_key_path: "{{ omit if not remote_cert else output_dir ~ '/' ~ (item.keyname | d(item.name)) ~ '.key' }}"
     private_key_passphrase: "{{ item.passphrase | d(omit) }}"
     password: changeit
+    ssl_backend: "{{ ssl_backend }}"
   loop: "{{ java_keystore_certs }}"
   check_mode: yes
   register: result_check

tests/unit/plugins/modules/system/test_java_keystore.py

@@ -14,7 +14,7 @@ from ansible_collections.community.general.tests.unit.plugins.modules.utils impo
 from ansible_collections.community.general.tests.unit.compat.mock import patch
 from ansible_collections.community.general.tests.unit.compat.mock import Mock
 from ansible.module_utils.basic import AnsibleModule
-from ansible_collections.community.general.plugins.modules.system.java_keystore import create_jks, cert_changed, ArgumentSpec
+from ansible_collections.community.general.plugins.modules.system.java_keystore import JavaKeystore, ArgumentSpec
 
 
 class TestCreateJavaKeystore(ModuleTestCase):
@@ -28,14 +28,16 @@ class TestCreateJavaKeystore(ModuleTestCase):
         self.spec = ArgumentSpec()
         self.mock_create_file = patch('ansible_collections.community.general.plugins.modules.system.java_keystore.create_file')
         self.mock_create_path = patch('ansible_collections.community.general.plugins.modules.system.java_keystore.create_path')
-        self.mock_run_commands = patch('ansible_collections.community.general.plugins.modules.system.java_keystore.run_commands')
+        self.mock_run_command = patch('ansible.module_utils.basic.AnsibleModule.run_command')
+        self.mock_get_bin_path = patch('ansible.module_utils.basic.AnsibleModule.get_bin_path')
         self.mock_os_path_exists = patch('os.path.exists',
                                          side_effect=lambda path: True if path == '/path/to/keystore.jks' else orig_exists(path))
         self.mock_selinux_context = patch('ansible.module_utils.basic.AnsibleModule.selinux_context',
                                           side_effect=lambda path: ['unconfined_u', 'object_r', 'user_home_t', 's0'])
         self.mock_is_special_selinux_path = patch('ansible.module_utils.basic.AnsibleModule.is_special_selinux_path',
                                                   side_effect=lambda path: (False, None))
-        self.run_commands = self.mock_run_commands.start()
+        self.run_command = self.mock_run_command.start()
+        self.get_bin_path = self.mock_get_bin_path.start()
         self.create_file = self.mock_create_file.start()
         self.create_path = self.mock_create_path.start()
         self.selinux_context = self.mock_selinux_context.start()
@@ -47,7 +49,8 @@ class TestCreateJavaKeystore(ModuleTestCase):
         super(TestCreateJavaKeystore, self).tearDown()
         self.mock_create_file.stop()
         self.mock_create_path.stop()
-        self.mock_run_commands.stop()
+        self.mock_run_command.stop()
+        self.mock_get_bin_path.stop()
         self.mock_selinux_context.stop()
         self.mock_is_special_selinux_path.stop()
         self.mock_os_path_exists.stop()
@@ -57,7 +60,38 @@ class TestCreateJavaKeystore(ModuleTestCase):
             certificate='cert-foo',
             private_key='private-foo',
             dest='/path/to/keystore.jks',
-            name='foo',
+            name='test',
+            password='changeit'
+        ))
+
+        module = AnsibleModule(
+            argument_spec=self.spec.argument_spec,
+            supports_check_mode=self.spec.supports_check_mode
+        )
+
+        with patch('os.remove', return_value=True):
+            self.create_path.side_effect = ['/tmp/tmpgrzm2ah7']
+            self.create_file.side_effect = ['/tmp/etacifitrec', '/tmp/yek_etavirp', '']
+            self.run_command.side_effect = [(0, '', ''), (0, '', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            assert jks.create() == {
+                'changed': True,
+                'cmd': ["keytool", "-importkeystore",
+                        "-destkeystore", "/path/to/keystore.jks",
+                        "-srckeystore", "/tmp/tmpgrzm2ah7", "-srcstoretype", "pkcs12", "-alias", "test",
+                        "-deststorepass:env", "STOREPASS", "-srcstorepass:env", "STOREPASS", "-noprompt"],
+                'msg': '',
+                'rc': 0
+            }
+
+    def test_create_jks_keypass_fail_export_pkcs12(self):
+        set_module_args(dict(
+            certificate='cert-foo',
+            private_key='private-foo',
+            private_key_passphrase='passphrase-foo',
+            dest='/path/to/keystore.jks',
+            name='test',
             password='changeit'
         ))
 
@@ -67,44 +101,15 @@ class TestCreateJavaKeystore(ModuleTestCase):
         )
 
         module.exit_json = Mock()
-
-        with patch('os.remove', return_value=True):
-            self.create_path.side_effect = ['/tmp/tmpgrzm2ah7']
-            self.create_file.side_effect = ['/tmp/etacifitrec', '/tmp/yek_etavirp']
-            self.run_commands.side_effect = [(0, '', ''), (0, '', '')]
-            create_jks(module, "test", "openssl", "keytool", "/path/to/keystore.jks", "changeit", "")
-            module.exit_json.assert_called_once_with(
-                changed=True,
-                cmd=["keytool", "-importkeystore",
-                     "-destkeystore", "/path/to/keystore.jks",
-                     "-srckeystore", "/tmp/tmpgrzm2ah7", "-srcstoretype", "pkcs12", "-alias", "test",
-                     "-deststorepass:env", "STOREPASS", "-srcstorepass:env", "STOREPASS", "-noprompt"],
-                msg='',
-                rc=0
-            )
-
-    def test_create_jks_keypass_fail_export_pkcs12(self):
-        set_module_args(dict(
-            certificate='cert-foo',
-            private_key='private-foo',
-            private_key_passphrase='passphrase-foo',
-            dest='/path/to/keystore.jks',
-            name='foo',
-            password='changeit'
-        ))
-
-        module = AnsibleModule(
-            argument_spec=self.spec.argument_spec,
-            supports_check_mode=self.spec.supports_check_mode
-        )
-
         module.fail_json = Mock()
 
         with patch('os.remove', return_value=True):
             self.create_path.side_effect = ['/tmp/tmp1cyp12xa']
-            self.create_file.side_effect = ['/tmp/tmpvalcrt32', '/tmp/tmpwh4key0c']
-            self.run_commands.side_effect = [(1, '', ''), (0, '', '')]
-            create_jks(module, "test", "openssl", "keytool", "/path/to/keystore.jks", "changeit", "passphrase-foo")
+            self.create_file.side_effect = ['/tmp/tmpvalcrt32', '/tmp/tmpwh4key0c', '']
+            self.run_command.side_effect = [(1, '', ''), (0, '', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            jks.create()
             module.fail_json.assert_called_once_with(
                 cmd=["openssl", "pkcs12", "-export", "-name", "test",
                      "-in", "/tmp/tmpvalcrt32",
@@ -121,7 +126,7 @@ class TestCreateJavaKeystore(ModuleTestCase):
             certificate='cert-foo',
             private_key='private-foo',
             dest='/path/to/keystore.jks',
-            name='foo',
+            name='test',
             password='changeit'
         ))
 
@@ -130,13 +135,16 @@ class TestCreateJavaKeystore(ModuleTestCase):
             supports_check_mode=self.spec.supports_check_mode
         )
 
+        module.exit_json = Mock()
         module.fail_json = Mock()
 
         with patch('os.remove', return_value=True):
             self.create_path.side_effect = ['/tmp/tmp1cyp12xa']
-            self.create_file.side_effect = ['/tmp/tmpvalcrt32', '/tmp/tmpwh4key0c']
-            self.run_commands.side_effect = [(1, '', ''), (0, '', '')]
-            create_jks(module, "test", "openssl", "keytool", "/path/to/keystore.jks", "changeit", "")
+            self.create_file.side_effect = ['/tmp/tmpvalcrt32', '/tmp/tmpwh4key0c', '']
+            self.run_command.side_effect = [(1, '', ''), (0, '', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            jks.create()
             module.fail_json.assert_called_once_with(
                 cmd=["openssl", "pkcs12", "-export", "-name", "test",
                      "-in", "/tmp/tmpvalcrt32",
@@ -152,7 +160,7 @@ class TestCreateJavaKeystore(ModuleTestCase):
             certificate='cert-foo',
             private_key='private-foo',
             dest='/path/to/keystore.jks',
-            name='foo',
+            name='test',
             password='changeit'
         ))
 
@@ -161,13 +169,16 @@ class TestCreateJavaKeystore(ModuleTestCase):
             supports_check_mode=self.spec.supports_check_mode
         )
 
+        module.exit_json = Mock()
         module.fail_json = Mock()
 
         with patch('os.remove', return_value=True):
             self.create_path.side_effect = ['/tmp/tmpgrzm2ah7']
-            self.create_file.side_effect = ['/tmp/etacifitrec', '/tmp/yek_etavirp']
-            self.run_commands.side_effect = [(0, '', ''), (1, '', '')]
-            create_jks(module, "test", "openssl", "keytool", "/path/to/keystore.jks", "changeit", "")
+            self.create_file.side_effect = ['/tmp/etacifitrec', '/tmp/yek_etavirp', '']
+            self.run_command.side_effect = [(0, '', ''), (1, '', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            jks.create()
             module.fail_json.assert_called_once_with(
                 cmd=["keytool", "-importkeystore",
                      "-destkeystore", "/path/to/keystore.jks",
@@ -186,15 +197,18 @@ class TestCertChanged(ModuleTestCase):
         super(TestCertChanged, self).setUp()
         self.spec = ArgumentSpec()
         self.mock_create_file = patch('ansible_collections.community.general.plugins.modules.system.java_keystore.create_file')
-        self.mock_run_commands = patch('ansible_collections.community.general.plugins.modules.system.java_keystore.run_commands')
-        self.run_commands = self.mock_run_commands.start()
+        self.mock_run_command = patch('ansible.module_utils.basic.AnsibleModule.run_command')
+        self.mock_get_bin_path = patch('ansible.module_utils.basic.AnsibleModule.get_bin_path')
+        self.run_command = self.mock_run_command.start()
         self.create_file = self.mock_create_file.start()
+        self.get_bin_path = self.mock_get_bin_path.start()
 
     def tearDown(self):
         """Teardown."""
         super(TestCertChanged, self).tearDown()
         self.mock_create_file.stop()
-        self.mock_run_commands.stop()
+        self.mock_run_command.stop()
+        self.mock_get_bin_path.stop()
 
     def test_cert_unchanged_same_fingerprint(self):
         set_module_args(dict(
@@ -211,9 +225,11 @@ class TestCertChanged(ModuleTestCase):
         )
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/placeholder']
-            self.run_commands.side_effect = [(0, 'foo=abcd:1234:efgh', ''), (0, 'SHA256: abcd:1234:efgh', '')]
-            result = cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/placeholder', '']
+            self.run_command.side_effect = [(0, 'foo=abcd:1234:efgh', ''), (0, 'SHA256: abcd:1234:efgh', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            result = jks.cert_changed()
             self.assertFalse(result, 'Fingerprint is identical')
 
     def test_cert_changed_fingerprint_mismatch(self):
@@ -231,9 +247,11 @@ class TestCertChanged(ModuleTestCase):
         )
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/placeholder']
-            self.run_commands.side_effect = [(0, 'foo=abcd:1234:efgh', ''), (0, 'SHA256: wxyz:9876:stuv', '')]
-            result = cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/placeholder', '']
+            self.run_command.side_effect = [(0, 'foo=abcd:1234:efgh', ''), (0, 'SHA256: wxyz:9876:stuv', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            result = jks.cert_changed()
             self.assertTrue(result, 'Fingerprint mismatch')
 
     def test_cert_changed_fail_alias_does_not_exist(self):
@@ -251,10 +269,12 @@ class TestCertChanged(ModuleTestCase):
         )
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/placeholder']
-            self.run_commands.side_effect = [(0, 'foo=abcd:1234:efgh', ''),
-                                             (1, 'keytool error: java.lang.Exception: Alias <foo> does not exist', '')]
-            result = cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/placeholder', '']
+            self.run_command.side_effect = [(0, 'foo=abcd:1234:efgh', ''),
+                                            (1, 'keytool error: java.lang.Exception: Alias <foo> does not exist', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            result = jks.cert_changed()
             self.assertTrue(result, 'Alias mismatch detected')
 
     def test_cert_changed_password_mismatch(self):
@@ -272,10 +292,12 @@ class TestCertChanged(ModuleTestCase):
         )
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/placeholder']
-            self.run_commands.side_effect = [(0, 'foo=abcd:1234:efgh', ''),
-                                             (1, 'keytool error: java.io.IOException: Keystore password was incorrect', '')]
-            result = cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/placeholder', '']
+            self.run_command.side_effect = [(0, 'foo=abcd:1234:efgh', ''),
+                                            (1, 'keytool error: java.io.IOException: Keystore password was incorrect', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            result = jks.cert_changed()
             self.assertTrue(result, 'Password mismatch detected')
 
     def test_cert_changed_fail_read_cert(self):
@@ -292,12 +314,15 @@ class TestCertChanged(ModuleTestCase):
             supports_check_mode=self.spec.supports_check_mode
         )
 
+        module.exit_json = Mock()
         module.fail_json = Mock()
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/tmpdj6bvvme']
-            self.run_commands.side_effect = [(1, '', 'Oops'), (0, 'SHA256: wxyz:9876:stuv', '')]
-            cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/tmpdj6bvvme', '']
+            self.run_command.side_effect = [(1, '', 'Oops'), (0, 'SHA256: wxyz:9876:stuv', '')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            jks.cert_changed()
             module.fail_json.assert_called_once_with(
                 cmd=["openssl", "x509", "-noout", "-in", "/tmp/tmpdj6bvvme", "-fingerprint", "-sha256"],
                 msg='',
@@ -319,12 +344,15 @@ class TestCertChanged(ModuleTestCase):
             supports_check_mode=self.spec.supports_check_mode
         )
 
+        module.exit_json = Mock()
         module.fail_json = Mock(return_value=True)
 
         with patch('os.remove', return_value=True):
-            self.create_file.side_effect = ['/tmp/placeholder']
-            self.run_commands.side_effect = [(0, 'foo: wxyz:9876:stuv', ''), (1, '', 'Oops')]
-            cert_changed(module, "openssl", "keytool", "/path/to/keystore.jks", "changeit", 'foo')
+            self.create_file.side_effect = ['/tmp/placeholder', '']
+            self.run_command.side_effect = [(0, 'foo: wxyz:9876:stuv', ''), (1, '', 'Oops')]
+            self.get_bin_path.side_effect = ['keytool', 'openssl', '']
+            jks = JavaKeystore(module)
+            jks.cert_changed()
             module.fail_json.assert_called_with(
                 cmd=["keytool", "-list", "-alias", "foo", "-keystore", "/path/to/keystore.jks", "-storepass:env", "STOREPASS", "-v"],
                 msg='',